WO2006054455A1 - Combination balance - Google Patents

Combination balance Download PDF

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Publication number
WO2006054455A1
WO2006054455A1 PCT/JP2005/020411 JP2005020411W WO2006054455A1 WO 2006054455 A1 WO2006054455 A1 WO 2006054455A1 JP 2005020411 W JP2005020411 W JP 2005020411W WO 2006054455 A1 WO2006054455 A1 WO 2006054455A1
Authority
WO
WIPO (PCT)
Prior art keywords
combination
hopper
weighed
weighing
group
Prior art date
Application number
PCT/JP2005/020411
Other languages
French (fr)
Japanese (ja)
Inventor
Shozo Kawanishi
Hiroshi Higuchi
Taketoshi Okamura
Original Assignee
Shozo Kawanishi
Hiroshi Higuchi
Taketoshi Okamura
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shozo Kawanishi, Hiroshi Higuchi, Taketoshi Okamura filed Critical Shozo Kawanishi
Priority to US11/719,725 priority Critical patent/US8035041B2/en
Priority to EP05806338.9A priority patent/EP1821084B1/en
Priority to AU2005307646A priority patent/AU2005307646B2/en
Priority to CA2588141A priority patent/CA2588141C/en
Publication of WO2006054455A1 publication Critical patent/WO2006054455A1/en

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Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01GWEIGHING
    • G01G19/00Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups
    • G01G19/387Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for combinatorial weighing, i.e. selecting a combination of articles whose total weight or number is closest to a desired value
    • G01G19/393Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for combinatorial weighing, i.e. selecting a combination of articles whose total weight or number is closest to a desired value using two or more weighing units

Definitions

  • the present invention relates to a combination weigher for feeding a weighed object to a packaging machine or the like.
  • Objects to be weighed such as detergents and confectionery that have been weighed with a combination weigher to a predetermined weight are generally packaged by a packaging machine.
  • Figure 12 shows the schematic configuration of a conventional combination weigher that measures such objects.
  • Figure 13 shows the schematic configuration of the packaging machine installed below the combination weigher.
  • the operation of the entire combination weigher is controlled by the control unit 20, and in the center of the upper part of the apparatus, a conical object that radially distributes the objects to be weighed supplied from an external supply device by vibration.
  • a distributed feeder 1 is provided.
  • a linear feeder 2 is provided for feeding an object to be weighed sent from the dispersion feeder 1 to each supply hopper 3 by vibration.
  • a plurality of supply hoppers 3 and weighing hoppers 4 are provided correspondingly and arranged in a circular shape.
  • the supply hopper 3 receives the object to be weighed sent from the linear feeder 2, and when the weighing hopper 4 disposed below it becomes empty, the gate is opened and the object to be weighed is put into the weighing hopper 4.
  • a weight sensor 41 such as a load cell is attached to the weighing hopper 4, and the weight sensor 41 measures the weight of an object in the weighing hopper 4.
  • a combination of hoppers to be discharged is obtained from among the plurality of weighing hoppers 4 by the combination calculation by the control unit 20, and the objects to be weighed are discharged from the weighing hoppers 4 corresponding to the combination onto the collecting chute 6.
  • the collecting shunt 6 is provided below the weighing hopper 4.
  • the objects to be weighed discharged from the weighing hopper 4 slide on the collecting chute 6 and the discharge loca provided at the lower part is also sent to the packaging machine shown in FIG.
  • the packaging machine while producing a bag, the bag is filled with the objects to be weighed discharged from the combination weigher and packaged.
  • This packaging machine is a sheet-like packaging material drawn from a roll of packaging material.
  • the vertical edges of the packaging materials 50 that are adsorbed by the machine 53 and fed downward and are formed into a cylindrical shape are sealed (sealed by welding) by the vertical sealing machine 54.
  • the weighed objects are filled into the tubular packaging material 50 through the tube 51, and the upper end of the preceding bag and the lower end of the succeeding bag are placed by the horizontal sealing machine 55 disposed below the tube 51.
  • a horizontal seal (sealing by welding) is performed.
  • the preceding bag is a complete bag whose upper and lower sides are sealed because the lower end is sealed by the previous horizontal sealing. Then, the center of the horizontal seal portion is cut by the cutter built in the horizontal sealing machine 55, and the preceding bag and the subsequent bag are separated.
  • Patent Literature 1 Japanese Patent Publication No. 8-1395
  • the discharge cycle for discharging the objects to be weighed to the packaging machine is shortened.
  • the discharge cycle is reduced to 1/2, 1/3 with respect to single shift. It corresponded as.
  • the discharge cycle is shortened, but the weight to be measured from the collective chute 6 does not shorten the length to the end of the tip force. The time it takes to enter one bag (packing machine bag) is not shortened.
  • the present invention has been made in order to solve the above-described problems, and can shorten the time for discharging one to-be-measured item, shorten the discharge cycle, and can be applied to a high-speed packaging machine. Its purpose is to provide a combination weigher.
  • the combination weigher of the present invention is arranged in a circle and the object to be weighed is arranged.
  • a plurality of basic groups consisting of arc-shaped hopper rows, each of which is divided into a plurality of combination hopper rows composed of a plurality of combination hoppers, and below each of the basic groups corresponding to each of the basic groups
  • a plurality of collective chutes for collecting the objects to be weighed that are discharged from the combination hoppers of the corresponding basic group and discharging them from a discharge port provided in the lower part, respectively,
  • a plurality of collective hoppers, and control means each of the control means comprising P or more of one or more basic groups (p is less than the total number of basic groups)
  • a plurality of discharge gnoles and by performing a combination operation based on the weight
  • a plurality of basic groups, collective chutes and collective hoppers each having a combined hopper row are provided correspondingly, and a plurality of discharge groups composed of one or more basic groups are determined, and each discharge is determined.
  • the object to be weighed is discharged simultaneously from the combination hopper obtained by combination calculation in Gnolepe.
  • the objects to be weighed are temporarily accumulated in the respective collection hoppers through the respective collection chutes, and the objects to be weighed are discharged from the collection hoppers sequentially for each discharge group in a sufficiently solid state.
  • One discharge time can be shortened and the discharge cycle can be shortened, enabling high-speed operation. Therefore, it can be applied to a packaging machine that operates at high speed, and it can also prevent stagnation of objects to be weighed in the packaging machine.
  • the basic group that does not belong to the emission group is processed.
  • the total weight of the input objects to be weighed is within the allowable range with respect to the target weight and the difference from the target weight is the smallest
  • a second process in which the combination hopper of the first combination is obtained, and the total weight of the objects to be weighed in the combination hopper of the first combination is set to the optimum combination weight of the combination group;
  • the combination group having the optimum combination weight having the smallest difference from the target weight among the combination groups is obtained, and the obtained combination group or the combination group is obtained.
  • the combination process is a first combination for determining (p_1) emission candidate groups each including one or more basic groups and obtaining an optimum combination weight of each emission candidate group. Determining a pth emission candidate group consisting of one or more basic groups and determining an optimum combined weight of each of the Pth emission candidate dulps, and determining the pth emission candidate group. And the (p-1) emission candidate gnole combined to form a second emission candidate group set, and before each of the p emission candidate groups in the emission candidate group set.
  • each loop process By repeating the loop process a plurality of times, which consists of a calculation process that calculates the sum of the difference between the optimal combination weight and the target weight, all the emission candidates with different gnoleos included in each loop process are repeated.
  • Each of the emission candidate gnoles is determined as the emission gnole, and the first combination process in the loop process of the same number of times that is repeated a plurality of times is assigned to the emission candidate group by a second process.
  • any one combination formed by combining k basic groups that do not belong (k is an integer of 1 or more)
  • the first process for obtaining the group for the combination and the combination group is subjected to a combination calculation based on the weight of the objects to be weighed in the combination hopper in the combination group.
  • the combination hopper of the first combination is selected, and the total weight of the objects to be weighed is within an allowable range with respect to the target weight, and the difference from the target weight is the smallest.
  • the basic group including the combination hoppers of the first combination in the combination group is determined as one discharge candidate gnole, and the total of the objects to be weighed in the combination hoppers of the first combination
  • a series of processes consisting of the second process in which the weight is the optimum combined weight of the discharge candidate gnolepe is performed (p-1) times, thereby the (p-1) discharge candidate groups.
  • the second combination process in the loop process of the same number of times is for the combination of all the basic groups not belonging to the (P-1) emission candidate gnole.
  • the total weight of the objects to be weighed is within an allowable range with respect to the target weight, and
  • the combination hopper of the second combination having the smallest difference is obtained and the combination of the (p_1) number of discharge candidate gnolees, les, all the basic groups, or the second combination.
  • the basic group including the hopper is determined to be the p-th discharge candidate group, and the total weight of the combination objects of the second combination combination hotspots is determined as the optimal combination of the P-th discharge candidate group.
  • the amount, wherein the P-th discharge candidate group (p_ 1) pieces of combination of the discharge candidate Gunorepu by one of the The process may be a discharge candidate gnole set (combination process B).
  • the series of processes including the first, second, and third processes is performed (p_l) times to determine (p_l) number of the discharge groups.
  • the number k of the basic groups constituting the combination group may be changed.
  • the combination process B a series of processes including the first and second processes is performed (p-1) times, so that (p-1) pieces of the emission candidate groups are obtained.
  • the number k of the basic groups constituting the combination group may be changed at least one of the (p_l) times.
  • the number of the combination hoppers included in each of the basic groups may be equal. In this case, the total number of combination hoppers can be divided by the number of basic groups.
  • the number of the combination hoppers included in at least one of the basic groups among all the basic groups is different from the number of the combination hoppers included in the other basic groups. May be. As described above, the number of combination hoppers included in each basic group is not necessarily the same.
  • the combination hopper may be a weighing hopper that measures the weight of an object to be weighed.
  • the combination hopper row is arranged in two upper and lower rows, the combination hopper of the upper combination hopper row is a weighing hopper for weighing the weight of an object to be weighed,
  • the lower combination hoppers in the combination hopper row are memory hoppers that are provided corresponding to the weighing hoppers and into which the objects to be weighed by the weighing hoppers are put, respectively. It may be configured so that the objects to be weighed can be discharged selectively to the hopper and the collective chute.
  • a plurality of weighing hoppers for weighing the weight of the objects to be weighed are disposed above the combination hoppers in correspondence with the respective combination hoppers.
  • Each of the storage chambers is a memory hopper in which an object to be weighed by the weighing hopper is charged and can be discharged into each of the storage chambers.
  • the weighing means can selectively discharge the objects to be measured into the two storage chambers of the memory hot bar, and the control means inputs the combination calculation in the combination processing into the respective storage chambers of the memory hot bars.
  • the combination of the storage chambers of the memory hot bar is determined based on the weight of the object to be weighed, and the combination of the storage chambers determined by the internal discharge processing is determined.
  • the objects to be weighed may be discharged, and the objects to be weighed may be removed from the collective hopper corresponding to the basic group including the memory hopper having the storage chamber of the determined combination in the external discharge processing. .
  • the combination hopper includes two weighing chambers, measures the weight of the objects to be weighed in the respective weighing chambers, and can discharge the objects to be weighed for each of the weighing chambers.
  • the control means performs the combination operation in the combination processing based on the weight of the objects to be weighed in the respective weighing chambers of the respective weighing hoppers, thereby measuring the weighing hoppers.
  • the objects to be weighed may be discharged from the collecting hopper corresponding to the basic gnolepe.
  • Each weighing chamber is provided with a plurality of weighing hoppers capable of discharging the objects to be weighed, and the combination hopper has two storage chambers corresponding to each weighing chamber of the corresponding weighing hopper.
  • the control means includes: The combination calculation in the combination process is performed based on the weight of the objects to be weighed in the respective storage chambers of each of the memory hobbies, thereby determining the combination of the storage chambers of the memory hot bar, and in the internal discharge process
  • the objects to be weighed are discharged from the storage chambers of the determined combination, and the objects to be weighed from the collective hopper corresponding to the basic group including the memory hopper having the storage chambers of the combination determined in the external discharge process. May be discharged.
  • the present invention provides a combination weigher that has the above-described configuration, shortens the discharge time of an object to be weighed, shortens the discharge cycle, and is compatible with a high-speed packaging machine. If you can do it, it will have a positive effect.
  • FIG. 1 is a schematic diagram of a cross section viewed from the side of a combination weigher according to an embodiment of the present invention
  • Fig. 1 (b) is an embodiment of the present invention.
  • FIG. 6 is a schematic diagram of the combination chute and the collection hopper of the combination weigher as viewed from above.
  • FIG. 2 is a schematic perspective view of the collective hopper shown in FIGS. 1 (a) and 1 (b).
  • FIG. 3 is a flowchart of the operation of the combination weigher according to the first embodiment of the present invention.
  • FIG. 4 is a timing chart showing an example of the operation of the combination weigher according to the embodiment of the present invention.
  • FIG. 5 is a timing chart showing an example of the operation of the combination weigher according to the embodiment of the present invention.
  • FIG. 6 is a flowchart of the operation of the combination weigher according to the second embodiment of the present invention.
  • FIG. 7 (a) shows another example of a collective chute and another example of the combination weigher according to the embodiment of the present invention.
  • FIG. 7 (b) is a schematic view of the collective shoot and collective hopper of the other example as seen from above.
  • FIG. 8 is a schematic diagram showing another example of a hopper used in the combination weigher according to the embodiment of the present invention.
  • FIG. 9 is a schematic diagram showing another example of a hopper used in the combination weigher according to the embodiment of the present invention.
  • FIG. 11 is a schematic diagram showing another example of a hopper used in the combination weigher according to the embodiment of the present invention.
  • FIG. 12 is a schematic diagram showing a configuration of a conventional combination weigher.
  • FIG. 13 is a schematic diagram showing a configuration of a packaging machine installed below the combination weigher.
  • FIG. 1 (a) is a schematic schematic view of a cross section viewed from the side of a combination weigher of one configuration example of the embodiment of the present invention
  • FIG. 1 (b) is one embodiment of the present invention.
  • a set of combination weighers in the configuration example It is the schematic diagram which looked at the ute and the collection hopper from the upper part.
  • a conical dispersion feeder 1 is provided in the center of the upper part of the device to disperse the object to be weighed supplied from an external supply device radially by vibration.
  • a linear feeder 2 is provided for feeding an object to be weighed sent from the dispersion feeder 1 to each supply hopper 3 by vibration.
  • a plurality of supply hoppers 3 and weighing hoppers 4 are provided correspondingly and arranged in a circular shape.
  • the supply hopper 3 receives the object to be weighed sent from the linear feeder 2, and when the weighing hopper 4 arranged below it is empty, the gate is opened and the object to be weighed is put into the weighing hopper 4.
  • a weight sensor 41 such as a load cell is attached to the weighing hopper 4, and the weight sensor 41 measures the weight of an object to be weighed in the weighing hopper 4.
  • the above configuration is the same as that of the conventional example shown in FIG.
  • the four divided chutes 6A to 6D are provided below the weighing hopper 4, and the collection hoppers 7A to 7D are provided at the discharge ports of the collection shunts 6A to 6D, respectively.
  • the collective shunts 6A to 6D are configured by a substantially inverted conical chute 61 divided into four by a partition wall 62.
  • each of the four collective chutes 6A to 6D is arranged in a circle so as to receive the objects to be weighed discharged from the weighing hoppers 4 of the total number of the weighing hoppers 4. Furthermore, it is positioned corresponding to 1/4 of the total number of weighing hoppers 4.
  • the objects to be weighed discharged from the weighing hopper 4 slide on the collecting chutes 6A to 6D corresponding to the weighing hopper 4 and are stored in the collecting hops 7A to 7D.
  • a schematic perspective view of the collecting hoppers 7A to 7D is shown in FIG.
  • Each of the collecting hoppers 7A to 7D is configured by a side plate 71, two partition plates 72, and a gate 73 that constitute an accommodation portion for an object to be weighed.
  • Each partition plate 72 is shared with adjacent collecting hoppers, and four collecting hoppers 7A to 7D are formed in a body.
  • the objects to be weighed are discharged by opening the gate 73 outward (for example, the direction in which the gate 73 of the collecting hopper 7A is opened is indicated by an arrow 74).
  • the control unit 21 controls the overall operation of the combination weigher and performs combination processing.
  • the packaging machine shown in FIG. 13 is installed below the combination weigher, and the objects to be weighed discharged from each of the collecting hoppers 7A to 7D are placed above the cylindrical tube 51 of the packaging machine. Is thrown into the wide inlet. Next, the operation of the combination weigher of this embodiment will be described.
  • the control unit 21 obtains a plurality of discharge gnoles combined with the basic group by combination processing described in detail later, and when obtaining each discharge gnole, the weighing value of the weighing hopper 4 belonging to the discharge group (weight sensor 41). previously determining the combination of the weighing object on the basis of weight) of by performing combination calculation, hoppers should Churyoku discharge of the weighing Ho Tsu path 4 belonging to the discharge Gunorepu in the weighing hoppers 4 which are measured by. By opening and closing the gate of the weighing hopper 4 corresponding to this determined combination, the objects to be weighed are discharged onto the collecting chute and stored in the collecting hopper.
  • control unit 21 receives the input command signal from the packaging machine and sequentially opens the gate for each of the collecting hoppers (7A to 7D) corresponding to each discharge group, and the weighing is performed from the collecting hopper with the gate opened. The material is discharged and put into the cylindrical tube 51 of the packaging machine.
  • Fig. 3 is a flowchart showing the operation of the combination weigher of the present embodiment.
  • the number of times the object to be weighed is discharged to the outside is p times (p is Multiple).
  • the above combination process is a process of steps S1 to S8.
  • the control unit 21 has a built-in memory, and information necessary for the combination processing (information on which basic group of weighing hobbies the combination gnole and discharge gnole described later are composed of) , Information indicating the weighing hopper of the optimum combination, information on the optimum combination weight, etc.) are stored in the memory
  • n is initially set to 1. This n indicates the number of discharged gnoles determined by the process of step S5 described later.
  • step S2 k basic groups that do not belong to the determined emission group are set. Find all the combined groups. Initially, there are no determined emission groups, so a group consisting of k basic groups from all basic groups is set as a combination group.
  • step S3 one combination group other than the selected combination group is selected, and the combination calculation is performed based on the measurement value of the weighing hopper 4 in the combination group.
  • the weighing hopper 4 of the combination (optimal combination) in which the total of the weighing values is within the allowable range with respect to the target weight and the difference from the target weight is the smallest is selected, and the weighing value of the weighing hopper 4 of the optimum combination is selected. Is the optimum combined weight. Initially, there is no selected combination group, so select any one combination group from all the combination groups and perform the above combination calculation.
  • step S4 it is determined whether or not there is a combination gnole that is not selected as a target of the combination operation in step S3 among the combination groups obtained in step S2. If so, step S3 Is repeated, and when the processing of step S3 is performed for all the combination gnoles, the process proceeds to step S5.
  • step S5 the optimum combination weight is the closest to the target weight among all the combination groups, the combination gnole is obtained, and the basic group including the weighing hopper 4 of the optimum combination in the combination group. To the nth emission group.
  • step S6 it is determined whether or not n is equal to p-1. If not equal, n is incremented by 1 in step S7, and the processing from step S2 is repeated. move on . That is, p—Repeat steps S2 to S5 until one emission group is determined.
  • step S8 combination calculation is performed based on the measurement values of the weighing hoppers 4 in all the basic groups not belonging to the p_l emission groups, and the total of the measurement values is the target. Select the weighing hopper 4 of the combination that is within the allowable range with respect to the weight and has the smallest difference from the target weight (optimal combination), and calculate the sum of the weighing values of the weighing hopper 4 of the optimum combination as the optimum combined weight. To do.
  • the basic group including the weighing hopper 4 of the optimum combination here is determined as the p-th discharge gnole.
  • step S9 the gates of the weighing hoppers 4 of the optimum combination in all the p discharge gnoles are simultaneously opened, and the objects to be weighed are supplied to the collecting hopper.
  • step S10 for example, every time an input command signal from a packaging machine is input, the gate is opened sequentially for each collecting hopper corresponding to each discharge gnole, and the objects to be weighed are discharged to the packaging machine. .
  • the gate is opened sequentially for each collecting hopper corresponding to each discharge gnole, and the objects to be weighed are discharged to the packaging machine. .
  • an object to be weighed having an optimum combined weight for each discharge group is discharged.
  • n is initially set to 1.
  • step S3 since there is no combination group selected at first, any one of all the combination groups, for example, a combination gnole combining basic groups A and B is selected, The combination calculation is performed in the group for the combination, and four weighing hoppers 4 of the optimum combination are selected, and the total weight value of the weighing hopper 4 of the optimum combination is set as the optimum combination weight.
  • the weighing hopper 4 is selected.
  • step S4 when there is a combination gnole that is not selected as a combination calculation target in step S3 among the combination groups obtained in step S2, step S3 is repeatedly performed. As a result, the optimum combination weighing hopper 4 and the optimum combination weight are obtained for all the above-mentioned six combination gnorapes.
  • the power is chosen.
  • the four weighing hoppers 4 of the optimal combination selected constitute a combination group, for example, basic group A.
  • basic groups A and B are emission groups, and if it belongs only to basic group A, only basic group A is the emission group, If it belongs to only basic group B, only basic gnolepe B becomes the emission gnolepe.
  • step S6 it is determined whether n is equal to p ⁇ 1.
  • step S8 for example, if basic groups B and C were determined to be emission groups in step S5, based on the measurement value of weighing hopper 4 in basic gnole A and D that do not belong to the emission gnole.
  • the combination calculation is performed, and four weighing hoppers 4 of the optimum combination are selected, and the sum of the weighing values of the weighing hopper 4 of the optimum combination is set as the optimum combination weight.
  • the basic gnole including the optimal combination of weighing hoppers 4 is determined as the second discharge dulp.
  • one basic group A is determined to be the discharge group in step S5, it is based on the measurement values of the three basic groups B, C and D that do not belong to the discharge group.
  • step SI n is initialized to 1.
  • step S3 as in the case of the basic group force described above, initially there is no selected combination group, so any one of all the combination groups, for example, the basic group, is selected.
  • Select a combination group that combines A and B perform combination calculation within the combination group, select the optimal combination weighing hopper 4, and optimally combine the weighing values of the optimal combination weighing hopper 4 Weight.
  • 70 ( )
  • step S4 when there is a combination gnole that is not selected as a combination operation target in step S3 among the combination groups obtained in step S2, step S3 is repeatedly performed. As a result, the optimum combination weighing hopper 4 and the optimum combination weight are obtained for all the above-mentioned 21 combination groups.
  • step S5 the optimum combination weight is the closest to the target weight among all the combination groups, a combination gnole is obtained, and the basic group including the weighing hopper 4 of the optimum combination in the combination group.
  • the four optimally selected weighing hoppers 4 constitute a combination group, for example, basic group A. There are cases where both belong to both B and B, and some belong to either one or the other.
  • step S6 it is determined whether n is equal to p_l.
  • step S8 for example, if basic group A is determined to be the first emission group and basic gnoleops B and C are determined to be the second emission gnole, within basic groups D to G that do not belong to the emission group
  • the combination operation is performed based on the measurement value of the weighing hopper 4, and the optimum combination weighing hopper 4 is selected, and the total of the measurement values of the weighing hopper 4 of the optimum combination is set as the optimum combination weight.
  • the basic group including the optimal combination of weighing hoppers 4 is determined as the third discharge group. Through the above process, three discharge gnoles are determined.
  • steps S1 to S8 when there are three basic groups when there are three collective chutes and collective hoppers
  • the combination group is preferably a combination of multiple basic groups.
  • step S1 n is initialized to 1.
  • step S2 since there is no determined emission group at first, all the basic gnoles A, B, and C are set as combination groups.
  • step S3 as in the case of S4 basic group forces, there is no selected combination group at first, so any one of all the combination groups, for example, basic group A, is selected.
  • the combination group is selected, the combination calculation is performed within the combination group, the optimum combination weighing hopper 4 is selected, and the optimum combination is calculated.
  • the sum of the weighing values of the quantity hopper 4 is the optimum combined weight.
  • Step S3 is repeatedly performed by step S4.
  • base group A
  • the optimum combination weighing hopper 4 and the optimum combination weight are determined within the combination group consisting of, B and C.
  • step S8 for example, if basic group A is determined to be the first discharge group, the combination calculation is performed based on the measurement values of basic groups B and C that do not belong to the discharge group. And select the weighing hopper 4 of the optimum combination and set the total weight of the weighing hopper 4 of the optimum combination as the optimum combination weight. Then, the basic group including the optimal combination of weighing hoppers 4 is determined as the second discharge group. Through the above process, two emission groups are determined.
  • step S5 a combination group whose optimum combination weight is closest to the target weight is obtained from all the combination groups, and the optimum combination weight is determined in the combination gnole.
  • the combination dull whose optimum combination weight is closest to the target weight may be determined as the discharge gnole as it is (in this case, There is a possibility that the combination accuracy will be slightly reduced).
  • step S8 the combination calculation is performed based on the weighing values of the weighing hoppers 4 in all the basic groups not belonging to the p_ l discharge groups, and the basic group including the weighing hopper 4 of the optimum combination is p.
  • each discharge gnole that sequentially discharges the objects to be weighed in step S10 is applied to the basic group including the weighing hopper 4 of the optimum combination in the discharge group. It is only necessary to open and close only the corresponding collecting hopper to discharge the object to be weighed.
  • step S2 when step S2 is repeated, the number k of basic groups constituting the combination group may be changed.
  • the number of basic groups constituting the combination group in the second step S2 may be made larger than in the first step S2.
  • FIG. 4 is a timing chart of the operation of the combination weigher when two discharge groups are determined by the combination process described above.
  • the first and second emission gnoles in Fig. 4 are the first and second emission groups, respectively, in the combination process described above. Or, for example, numbers (1, 2, 3,...) Indicating the priority order of emissions are assigned to all basic gnoles (or collective hotspots), and the first and second emission groups in the combination process are assigned.
  • One weighing cycle in this combination weigher includes a discharge time tl, a stabilization time t2, and a combination time t3.
  • the discharge time tl is the opening / closing of the optimum combination of weighing hoppers 4 operated to supply the objects to be weighed to the collecting hopper and the supply hoppers operated to supply the objects to be weighed to the weighing hoppers 4 This is the time required to open and close the gate.
  • the stabilization time t 2 is the stabilization time of the weight sensor 41 attached to the weighing hopper 4.
  • the combination time t3 is a time for performing the combination process, and this time t3 may include a waiting time until the discharge time of the next weighing cycle.
  • each discharge group is operated by shifting T / 2 hours (T is the time of one weighing cycle) in a predetermined order, so that the total is doubled compared to the case of operating as a single combination weigher. Discharge is possible at high speed It can be used with an operating packaging machine.
  • the objects to be weighed discharged from the weighing hopper 4 are temporarily stored in the respective collecting hoppers (7A to 7D) through the respective collecting chutes (6A to 6D), and the objects to be weighed are sufficiently solidified.
  • the discharge time from each collecting hopper corresponding to each discharge gnole is shortened, and the occurrence of stagnation of objects to be weighed in the packaging machine can be prevented.
  • FIG. 5 is a timing chart of the operation of the combination weigher when three discharge groups are determined by the combination process described above.
  • FIG. 5 like FIG. 4, only one weighing cycle and the discharge timing of the collecting hopper during the weighing cycle are shown, and this operation is repeated continuously.
  • the first, second, and third emission gnoles in Fig. 5 are the first, second, and third emission groups in the combination process described above, respectively. Or, for example, all basic groups (or collective hoppers) are assigned numbers (1, 2, 3,...) That indicate the priority of discharge, and the first, second, 3 in the combination process.
  • the emission group including the group may be the second emission gnole
  • the emission group including the basic group with the third lowest number may be the third emission gnole.
  • One weighing cycle in this combination weigher consists of a discharge time tl, a stabilization time t2, and a combination time t3, as in the case of FIG.
  • the gate of the collecting hopper corresponding to the first discharge group is opened by the input command signal at timing a output from the packaging machine, the material to be weighed is discharged to the packaging machine, and the input at timing b
  • the collective hot bar gate corresponding to the second discharge gnole is opened by the command signal and discharged to the packaging machine, and the collective hot bar gate corresponding to the third discharge dulp is opened by the input command signal at timing c.
  • the product is discharged to the packaging machine.
  • each discharge gnole is operated by shifting T / 3 time (T is the time of one weighing cycle) in the order determined in advance, so that the total is three times that of a single combination weigher.
  • the objects to be weighed discharged from the weighing hopper 4 are once stored in the respective collecting hoppers. As the objects to be weighed are discharged from each collecting hopper in a sufficiently solid state, the discharge time for one discharge from the collecting hopper corresponding to each discharging group is shortened, and the objects to be weighed in the packaging machine are shortened. Occurrence of stagnation can be prevented.
  • the number of collective chutes and collective hoppers that is, the number of basic loops is 3 or more.
  • the combination group in the combination process can be a combination of a plurality of basic gnoles, and if the number of weighing hoppers in the basic group is the same, This is because the number of combinations during the combination calculation in step S3 can be increased.
  • the configuration example of the combination weigher of the present embodiment is the same as that of the first embodiment shown in FIGS. 1A and 1B, for example, and the description thereof is omitted.
  • the main difference from the first embodiment is the processing method of the combination processing performed by the control unit 21.
  • FIG. 6 is a flowchart showing the operation of the combination weigher according to the present embodiment.
  • the combination process is a process of steps S20 to S28.
  • the control unit 21 has a built-in memory, and the necessary information to be obtained in the combination process (whether the combination gnole, the evacuation candidate gnole and the evacuation group described later are composed of weighing hoppers in which basic group is configured).
  • Information, information indicating the weighing hopper of the optimum combination, information on the optimum combination weight, information obtained in step S27, and information on the sum of the differences) are stored in the memory.
  • all the emission candidate group sets are obtained by repeating the processing of the following steps S21 to S27, and the sum of differences described later is obtained for each emission candidate group set.
  • n is initially set to 1. This n indicates the number of emission candidate groups obtained by the process of step S23 described later.
  • step S22 the repetition step S20 (S21 to S27) is repeated a plurality of times, and it belongs to the emission candidate group determined in the same number of repetition steps S20. Find one combination group consisting of k basic groups that have not been combined. Initially, there are no determined emission candidate groups, so one group that is a combination of k basic groups from all the basic groups is designated as a combination group.
  • step S23 a combination calculation is performed based on the measurement values of the weighing hoppers 4 in the combination group obtained in step S22, and the total of the measurement values is within an allowable range with respect to the target weight.
  • the weighing hopper 4 of the combination with the smallest difference from the weight (optimal combination) is selected, and the sum of the weighing values of the weighing hopper 4 of the optimum combination is the optimum combined weight.
  • the basic group including the optimal combination of weighing hoppers 4 is determined as the nth discharge candidate gnole.
  • step S24 it is determined whether or not n is equal to p_l. If not equal, n is increased by 1 in step S25, and the process from step S22 is repeated. If equal, the process proceeds to step S26. . That is, the processes of steps S22 to S23 are repeated until p_l emission candidate groups are determined.
  • step S26 a combination calculation is performed based on the measured values of the weighing hoppers 4 in all the basic groups not belonging to the above-mentioned p-one discharge candidate group, and the total of the measured values is compared with the target weight.
  • the weighing hopper 4 with a combination that is within the allowable range and has the smallest difference from the target weight (optimal combination) is selected, and the sum of the weighing values of the weighing hopper 4 of the optimum combination is the optimum combined weight.
  • the basic group including the optimum combination of the weighing hoppers 4 is determined as the pth emission candidate gnole, and the p emission candidate groups determined above are set as the emission candidate group set.
  • step S27 the difference between the optimal combination weight and the target weight is calculated for each emission candidate group in the emission candidate group set, and the total of the above differences calculated for each emission candidate group is calculated. To do.
  • step S20 By repeating the above steps S21 to S27 (step S20), all the emission candidate gnole sets are obtained, and the sum of the above differences is obtained for each emission candidate group set.
  • step S28 one emission candidate gnolep set that minimizes the sum of the differences obtained in step S27 is selected from all emission candidate group sets, and the emission candidates are selected.
  • Each of the p emission candidate groups in the gnolepe set is determined as an emission gnolepe.
  • P discharge groups are determined by the combination processing of steps S20 to S28.
  • step S29 the gates of the weighing hoppers 4 of the optimum combination in all p discharge gnoles are opened simultaneously to collect the objects to be weighed. Supply to Hotsuba.
  • step S30 for example, each time an input command signal from the packaging machine is input, the gate of the collecting hot bar corresponding to each discharge gnole is opened, and the objects to be weighed are discharged to the packaging machine. That is, each time an input command signal is input from the packaging machine, an object to be weighed with an optimum combination weight for each discharge gnole is discharged.
  • the weighing hopper 4 with the combination in which the total weight value of the weighing hopper 4 is within the allowable range with respect to the target weight and the difference from the target weight is the smallest is set as the weighing hopper 4 with the optimum combination. Force to be selected If the above-mentioned permissible range is equal to or greater than the target weight, the value obtained by subtracting the target weight from the optimum combination weight may be obtained as the difference.
  • the optimal combination weight is larger than the target weight.
  • the value obtained by subtracting the target weight from the optimum combination weight is set as the above difference, and if the optimum combination weight is smaller than the target weight, the value obtained by subtracting the optimum combination weight from the target weight may be obtained as the above difference.
  • an absolute value (0 or a positive value) obtained by subtracting the target weight from the optimum combination weight may be obtained as the above difference.
  • n is initially set to 1 in step S21 in repetitive step S20.
  • step S22 since there is no determined emission candidate group at the beginning, all the groups are determined.
  • One combination group is obtained by combining two of these groups A to D, for example, combining basic groups A and B.
  • step S23 for example, combination calculation is performed within the combination group in which the basic groups A and B are combined, and four weighing hoppers 4 of the optimum combination are selected, and the total of the weighing values of the weighing hopper 4 of the optimum combination are calculated. Use the optimum combination weight.
  • the basic group including the optimal combination of weighing hoppers 4 is determined as the first discharge candidate group.
  • four weighing hoppers 4 of the optimum combination are selected, and six weighing hoppers 4 are provided in each basic group. Therefore, the weighing hopper 4 of the optimum combination belongs to both basic groups A and B. Cases and cases belonging to only one of them.
  • step S24 it is determined whether n is equal to p ⁇ 1.
  • step S26 for example, if basic groups A and B are determined as emission candidate groups in step S23, based on the measurement values of weighing hoppers 4 in basic groups C and D that do not belong to the emission candidate groups. Perform combination calculation and select 4 weighing hoppers 4 of the optimal combination, and the total of the weighing values of the weighing hopper 4 of the optimal combination is the optimum combined weight. Then, the basic group including the optimal combination of weighing hoppers 4 is determined as the second emission candidate gnole, and the two emission candidate groups determined above are set as the emission candidate group set.
  • step S23 if one basic group A has been determined to be an emission candidate gnole, the measurement of the weighing hopper 4 in the three basic gnolees B, C, and D will not belong to the emission candidate group.
  • the combination calculation is performed based on the values, and four weighing hoppers 4 of the optimum combination are selected, and the total of the weighing values of the weighing hopper 4 of the optimum combination is set as the optimum combination weight.
  • the basic group including the optimal combination of weighing hoppers 4 is determined as the second emission candidate group, and the two emission candidate groups determined above are set as the emission candidate group set.
  • step S27 for each of the two emission candidate gnoles in the emission candidate group set, obtain the difference between the optimal combination weight and the target weight, and then calculate the sum of the above differences obtained for each emission candidate group. To do.
  • the processing of the repetition step S20 of the above steps S21 to S27 is repeated.
  • the above process is repeated when the basic groups A and C are used as the combination group, and the above process is repeated when the basic group A and D are used as the combination group.
  • the above processing is repeated in the case where the basic groups B and C, the basic groups B and D, and the basic gnole C and D are used as the combination groups.
  • all emission candidate gnolepe sets are obtained, and the sum of the above differences is obtained for each emission candidate gnolepe set.
  • step S28 one emission candidate gnole set that minimizes the sum of the differences obtained in step S27 is selected from all emission candidate group sets, and the two emission candidates in the emission candidate gnole set are selected.
  • Candidate gnorapes are determined for each emission group.
  • steps S20 to S28 when there are seven basic groups when there are seven collective chutes and collective hoppers
  • n Initialize to 1.
  • step S22 since there is no determined emission candidate group at first, two combinations from all the basic groups A to G are combined. For example, one combination group in which basic groups A and B are combined Ask for.
  • step S23 combination calculation is performed within the combination group in which the basic groups A and B are combined, and four weighing hoppers 4 of the optimum combination are selected, and the total of the weighing values of the weighing hopper 4 of the optimum combination are selected. Is the optimum combination weight. Then, the basic group including the optimal combination weighing hopper 4 is determined as the first discharge candidate group. Where each group There are four weighing hoppers 4 in this group, so the four optimally selected weighing hoppers 4 form a combination group and are connected to both the basic gnole A and B. There are cases where it belongs and cases where it belongs to only one of them.
  • step S24 it is determined whether n is equal to p_l.
  • step S26 for example, if basic group A is determined to be the first emission candidate gnole and basic groups B and C are determined to be the second emission candidate group, they belong to the emission candidate group.
  • B Perform combination calculation based on the weighing value of the weighing hopper 4 in the basic group D to G, select the weighing hopper 4 of the optimum combination, and combine the weighing value of the weighing hopper 4 of the optimum combination to the optimum combination Weight.
  • the basic group including the optimal combination weighing hopper 4 is determined as the third emission candidate group, and the three emission candidate groups determined above are set as the emission candidate group set.
  • step S27 for each of the three emission candidate groups in the emission candidate group set, the difference between the optimum combination weight and the target weight is obtained, and further, the above difference obtained for each emission candidate group is calculated. Calculate the total.
  • step S20 the processing of the repeat step S20 of the above steps S21 to S27 is repeated.
  • step S22 when basic groups C and D basic groups C and D are combined.
  • the combination groups obtained in step S22 are the basic groups B and D (5th), basic groups B and E (6th), basic groups B and F (7th), and basic groups B and G (8th).
  • all emission candidate gnolepe sets are obtained, and the sum of the above differences is obtained for each emission candidate gnolepe set.
  • step S28 one emission candidate gnole set that minimizes the sum of the differences obtained in step S27 is selected from all emission candidate group sets, and the three emission candidate gnolees of that emission candidate gnole set are selected. Decide each emission group.
  • steps S20 to S28 when there are three basic groups when there are three collective chutes and three collective hotspots) will be specifically described.
  • n is initially set to 1 in step S21 in repetitive step S20.
  • step S22 since there is no determined emission candidate group at first, one of the basic loops k B and C is set as a combination group.
  • step S23 combination calculation is performed within the combination group obtained in step S22, the optimum combination weighing hopper 4 is selected, and the total of the weighing values of the optimum combination weighing hopper 4 is optimized. Weight. Then, the basic group that includes the weighing hopper 4 of the optimal combination (here, equivalent to the combination gnole) is determined as the first discharge candidate group.
  • step S24 it is determined whether n is equal to p ⁇ 1.
  • step S26 for example, if basic group A is set as a combination group in step S22, and basic gnole A is determined to be an emission candidate gnole in step S23, the group belongs to the emission candidate gnole.
  • basic gnole B Perform combination calculation based on the weighing value of weighing hopper 4 in B and C, select four weighing hoppers 4 of the optimum combination, and total the weighing values of weighing hopper 4 of the optimum combination Is the optimum combination weight. Then, the basic group including the weighing hopper 4 of the optimum combination is determined as the second emission candidate group, and the two emission candidate gnoles determined above are set as the emission candidate gnorape set.
  • step S27 for each of the two emission candidate groups in the emission candidate group set, a difference between the optimum combination weight and the target weight is obtained, and further, the above difference obtained for each emission candidate group is calculated. Calculate the total.
  • step S20 the processing of the repetition step S20 of steps S21 to S27 is repeated.
  • step S22 the above process is repeated for the case where basic group B is used as a combination group in step S22, and the above process is repeated for the case where basic group C is used as a combination group.
  • step S28 one emission candidate gnole set that minimizes the sum of the differences obtained in step S27 is selected from all emission candidate group sets, and the two emission candidates in the emission candidate gnole set are selected.
  • Candidate gnorapes are determined for each emission group. In the process shown in FIG.
  • the basic group including the weighing hopper 4 of the optimum combination in the combination group is determined as the discharge candidate group in step S23, but the combination gnole is discharged as it is. It may be determined as a candidate gnolepe (in this case, the combination accuracy may be slightly reduced).
  • step S26 combination calculation is performed based on the weighing values of the weighing hoppers 4 in all the basic groups not belonging to the p_l emission candidate groups, and the basic group including the weighing hopper 4 of the optimum combination is p. Although it is determined to be the first emission candidate group, it may be determined that it belongs to p_ l emission candidate groups, and all basic groups are determined to be the pth emission candidate group (however, The combination operation is not changed). In these cases, each discharge gnole that sequentially discharges the objects to be weighed in step S30 opens and closes only the collective hopper corresponding to the basic group including the weighing hopper 4 of the optimal combination in the discharge group. If you try to discharge.
  • the force is set to perform step S27 in repeat step S20. After repeat step S20 (repetition of S21 to S26) is completed without repeating step S27 in repeat step S20, before step S28.
  • step S20 repetition of S21 to S26
  • step S28 the step of obtaining the difference between the optimum combination weight of each emission candidate group and the target weight and calculating the sum of those differences is performed. It may be.
  • step S22 when step S22 is repeated in a single loop in which repeat step S20 is repeated, the number k of basic groups constituting the combination group may be changed.
  • the number of basic gnoles constituting the combination group in the second step S2 may be made larger than in the first step S2.
  • FIG. 4 the timing chart of the operation of the combination weigher when two discharge groups are determined by the combination processing is shown in FIG. 4, and the combination weigher when three discharge groups are determined.
  • the operation timing chart is shown in FIG.
  • the first, second, and (third) emission groups in Fig. 4 (Fig. 5) are each subjected to the combination process described above.
  • all basic loops (or collective hoppers) are assigned numbers (1, 2, 3,...) That indicate the priority of discharge, and each discharge group determined in step S28.
  • the emission gnole may be the second emission group, and in the case of Figure 5, the emission gnole including the third lowest basic gnole may be the third emission group.
  • the speed is twice or three times as compared with the case where the whole operates as one combination weigher.
  • the objects to be weighed discharged from the weighing hopper 4 are once stored in the respective collecting hoppers through the respective collecting chutes and discharged from each collecting hopper in a state where the weighing objects are sufficiently hardened.
  • the discharge time for one discharge from the collecting hopper corresponding to the discharge group is shortened, and the occurrence of stagnation of objects to be weighed in the packaging machine can be prevented.
  • the total weight of the objects to be weighed discharged from the p discharge groups can be reduced and the consumption of the objects to be weighed can be reduced as compared with the case of Embodiment 1. There is an effect that can be done.
  • the number of collective chutes and collective hoppers that is, the number of basic loops is 3 or more.
  • the combination group in the combination process can be a combination of a plurality of basic gnoles, and if the number of weighing hoppers in the basic group is the same, This is because the number of combinations at the time of the combination calculation in step S23 can be increased.
  • FIG. 7 (a) is a schematic view of the collective chute and collective hopper used in place of the collective chute and collective hob shown in Figs. L (a) and (b) as seen from the side.
  • FIG. 7 (b) is a schematic diagram of the collective chute and collective hopper shown in FIG. 7 (a) as viewed from above.
  • Figs. 7 (a) is a schematic view of the collective chute and collective hopper used in place of the collective chute and collective hob shown in Figs. L (a) and (b) as seen from the side.
  • FIG. 7 (b) is a schematic diagram of the collective chute and collective hopper shown in FIG. 7 (a) as viewed from above.
  • the force provided with four collective hoppers 7A to 7D formed integrally at the lower center of the substantially inverted conical chute 61 is shown in Figs. 7 (a) and (b).
  • the discharge holes for the collecting chutes 6A to 6D are provided at a lower portion near the center of the substantially inverted conical chute 61, the collecting hoppers 7a to 7d are provided at the respective discharging openings, and the collecting hoppers 7a to 7d are further provided.
  • the structure is provided with an inverted frustoconical lower chute 63 for receiving the discharged measured material and feeding it into the tube 51 of the packaging machine.
  • the gates of the four collecting hoppers 7a to 7d can be configured in the same manner as the known supply hopper 3 and the like. Even if the lower chute 63 is not provided, the lower chute 63 may not be provided if the objects to be weighed discharged from the collecting hoppers 7a to 7d can be directly put into the tube 51 of the packaging machine. Alternatively, the substantially inverted conical portion on the side surface of the chute 61 and the lower chute 63 may be formed continuously and integrally, and a collecting hot bar may be provided in the middle of the integrally formed chute. As described above, the number of collective chutes and collective hoppers, that is, the number of basic groups can be three or more.
  • the collective chutes (6A to 6D) may be separated.
  • each collective chute corresponding to each basic drape is completely separated, and a collective hopper (7a-7d) is provided below each collective chute to be weighed discharged from all collective hoppers.
  • a configuration may be provided in which a lower chute (63) for receiving an object and discharging it to the tube (51) of the packaging machine is provided.
  • the force obtained by equalizing the number of the weighing hoppers 4 participating in the combinations included in each basic group The number of the weighing hoppers 4 included in each basic group is not necessarily the same. There is no need. For example, a total of 11 weighing hoppers 4 may be provided, and 5 basic groups each having 2 weighing hoppers 4 and 1 basic gnolepe having 1 weighing hopper 4 may be configured.
  • the weighing hopper 4 is configured to selectively discharge the objects to be weighed to the collecting chute 6X (6A to 6D) and the memory hopper 5.
  • the memory hopper 5 is empty, the object to be weighed is fed from the weighing hopper 4.
  • a combination of hoppers having an optimum combination weight is obtained from the hopper 4 and the memory hopper 5, and the objects to be weighed are discharged from the hopper corresponding to the combination onto the collecting chute 6X.
  • the weight of the object to be weighed in the memory hopper 5 used in the combination calculation is the weight when weighed in the weighing hopper 4 above it.
  • each basic group A to D has almost the same performance as when six weighing hoppers 4 are provided, each basic group If A to D are equipped with three weighing hoppers 4 and three memory hoppers 5, it is sufficient to halve the number of expensive weight sensors 41.
  • each memory hopper 5 may have two storage chambers 5a and 5b.
  • the weighing hopper 4 is configured to selectively discharge the object to be measured to the storage chamber 5a and the storage chamber 5b of the memory hopper 5, and is not discharged from the weighing hopper 4 onto the collecting chute 6X.
  • the two storage chambers 5a and 5b of the memory hopper 5 are configured such that the objects to be weighed can be discharged separately.
  • the combination calculation is performed using, for example, the weight of the weighing objects in the storage chambers 5a and 5b of each memory hopper 5, and each of the storage chambers 5a and 5b participates in the combination, and the weighing hopper 4 participates in the combination. do not do.
  • the weight when weighed in the weighing hopper 4 above is used. Note that only the combination in which each weighing hopper 4 and one of the storage chambers 5a and 5b of the corresponding memory hopper 5 are selected at the same time is valid, and the weighing hopper 4 can be included in the combination. For example, when the corresponding weighing hopper 4 and the storage chamber 5a of the memory hopper 5 are selected at the same time, the measured item in the weighing hopper 4 passes through the storage chamber 5a and is discharged onto the collecting chute 6X.
  • each weighing hopper 4 may have two weighing chambers 4a and 4b.
  • the supply hopper 3 can selectively discharge the objects to be weighed into the weighing chamber 4a and the weighing chamber 4b of the weighing hopper 4, and the two weighing chambers 4a and 4b of the weighing hopper 4 are separately covered. It is a configuration that can discharge the weighing object.
  • the combination calculation is performed using the weight of the objects to be weighed in the weighing chambers 4a and 4b of each weighing hopper 4, and each weighing chamber 4a and 4b participates in the combination.
  • each weighing hopper 4 having two weighing chambers 4a and 4b
  • the weight of the weighing object in the weighing chamber 4a is the weight sensor. Weighed by 41.
  • an object to be weighed is supplied to the other weighing chamber 4b
  • two The total weight of the objects to be weighed in the measuring chambers 4a and 4b is measured by the weight sensor 41.
  • the control unit 21 subtracts the weight of the objects to be weighed in the weighing chamber 4a from the total weight of the objects to be weighed in the two weighing chambers 4a and 4b. Calculate the weight of the sample and perform combination calculation.
  • each weighing hopper 4 has two weighing chambers 4a and 4b, and further corresponds to the weighing chambers 4a and 4b of the weighing hopper 4 below each weighing hopper 4.
  • a memory hopper 5 having two storage chambers 5a and 5b may be provided.
  • the supply hopper 3 is configured to selectively discharge an object to be weighed into the weighing chamber 4a and the weighing chamber 4b of the weighing hopper 4.
  • the objects to be weighed in the weighing chamber 4a of the weighing hopper 4 are sent to the storage chamber 5a of the memory hopper 5, and the objects to be weighed in the weighing chamber 4b of the weighing hopper 4 are sent to the storage chamber 5b of the memory hopper 5.
  • the combination calculation is performed using, for example, the weight of the objects to be weighed in the storage chambers 5a and 5b of each memory hopper 5, and each of the storage chambers 5a and 5b participates in the combination, and the weighing hopper 4 does not participate in the combination. Les.
  • the weight of the objects to be weighed in each of the storage chambers 5a and 5b the weight measured and calculated in each of the weighing chambers 4a and 4b of the weighing hopper 4 thereabove is used. It is also possible to make each weighing chamber 4a, 4b of the weighing hopper 4 participate in the combination, with only the combination in which the weighing chambers 4a, 4b and the corresponding storage chambers 5a, 5b are simultaneously selected valid. For example, when the corresponding weighing chamber 4a and the storage chamber 5a are selected at the same time, the objects to be weighed in the weighing chamber 4a pass through the storage chamber 5a and are discharged onto the collecting chute 6X.
  • the combination weighers of the first embodiment and the second embodiment described above are provided with the dispersion feeder 1, the linear feeder 2 and the supply hopper 3.
  • these configurations are limited.
  • other configurations may be used as long as a means for supplying the object to be weighed to the weighing hopper 4 is provided.
  • the control unit 21 includes a plurality of control devices that are not necessarily configured by a single control device, and the control unit 21 is configured to control the operation of the combination weigher in cooperation with each other.
  • the combination weigher of the present invention is useful as a combination weigher that can be used for a high-speed packaging machine.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Supply Of Fluid Materials To The Packaging Location (AREA)
  • Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
  • Sorting Of Articles (AREA)
  • Basic Packing Technique (AREA)

Abstract

A combination balance, comprising a plurality of basic groups formed by dividing a plurality of hoppers (4) for combination arranged in a circular shape, a plurality of collecting chutes (6A to 6D) disposed correspondingly to the basic groups, a plurality of collecting hoppers (7A to 7D) installed at the outlets of the collecting chutes, and a control means (21). The control means (21) performs a combination treatment determining the discharge groups of p in quantity formed of one or more of the basic groups and providing the hoppers for combination in the optimum combination by a combination calculation in the discharge groups, a treatment for simultaneously discharging weighed objects from the hoppers for combination in the optimum combination in all discharge groups, and a treatment for selecting the discharge groups in order and discharging, in the selected order, the weighed objects from the collecting hoppers corresponding to the basic groups including the hoppers for combination in the optimum combination in the discharge groups.

Description

明 細 書  Specification
組合せ秤  Combination scale
技術分野  Technical field
[0001] 本発明は、計量した被計量物を包装機等へ投入する組合せ秤に関する。  [0001] The present invention relates to a combination weigher for feeding a weighed object to a packaging machine or the like.
背景技術  Background art
[0002] 組合せ秤で計量されて所定重量とされた洗剤や菓子類等の被計量物は、包装機 によって袋詰めされるのが一般的である。このような被計量物の計量を行う従来の組 合せ秤の概略構成を図 12に示す。また、組合せ秤の下方に設置される包装機の概 略構成を図 13に示す。  [0002] Objects to be weighed such as detergents and confectionery that have been weighed with a combination weigher to a predetermined weight are generally packaged by a packaging machine. Figure 12 shows the schematic configuration of a conventional combination weigher that measures such objects. Figure 13 shows the schematic configuration of the packaging machine installed below the combination weigher.
[0003] 図 12に示す組合せ秤は、制御部 20によって組合せ秤全体の動作が制御され、装 置上部の中央に、外部の供給装置から供給される被計量物を振動によって放射状 に分散させる円錐形の分散フィーダ 1が設けられている。分散フィーダ 1の周囲には 、分散フィーダ 1から送られてきた被計量物を振動によって各供給ホッパ 3に送りこむ ためのリニアフィーダ 2が設けられている。リニアフィーダ 2の下方には、複数の供給 ホッパ 3、計量ホッパ 4がそれぞれ対応して設けられ、円状に配置されている。供給ホ ッパ 3はリニアフィーダ 2から送りこまれた被計量物を受け取り、その下方に配置され た計量ホッパ 4が空になるとゲートを開いて計量ホッパ 4へ被計量物を投入する。計 量ホッパ 4にはロードセル等の重量センサ 41が取り付けられており、この重量センサ 41が計量ホッパ 4内の被計量物の重量を計測する。制御部 20による組合せ演算に より複数の計量ホッパ 4の中から排出すべきホッパの組合せが求められ、その組合せ に該当する計量ホッパ 4から被計量物が集合シュート 6上へ排出される。集合シユー ト 6は、計量ホッパ 4の下方に設けられている。計量ホッパ 4から排出された被計量物 は集合シュート 6上を滑り、下部に設けられた排出ロカも図 13に示す包装機に送出 される。  [0003] In the combination weigher shown in FIG. 12, the operation of the entire combination weigher is controlled by the control unit 20, and in the center of the upper part of the apparatus, a conical object that radially distributes the objects to be weighed supplied from an external supply device by vibration. A distributed feeder 1 is provided. Around the dispersion feeder 1, a linear feeder 2 is provided for feeding an object to be weighed sent from the dispersion feeder 1 to each supply hopper 3 by vibration. Below the linear feeder 2, a plurality of supply hoppers 3 and weighing hoppers 4 are provided correspondingly and arranged in a circular shape. The supply hopper 3 receives the object to be weighed sent from the linear feeder 2, and when the weighing hopper 4 disposed below it becomes empty, the gate is opened and the object to be weighed is put into the weighing hopper 4. A weight sensor 41 such as a load cell is attached to the weighing hopper 4, and the weight sensor 41 measures the weight of an object in the weighing hopper 4. A combination of hoppers to be discharged is obtained from among the plurality of weighing hoppers 4 by the combination calculation by the control unit 20, and the objects to be weighed are discharged from the weighing hoppers 4 corresponding to the combination onto the collecting chute 6. The collecting shunt 6 is provided below the weighing hopper 4. The objects to be weighed discharged from the weighing hopper 4 slide on the collecting chute 6 and the discharge loca provided at the lower part is also sent to the packaging machine shown in FIG.
[0004] 包装機では、袋を製造しながら、この袋に組合せ秤から排出されてきた被計量物を 充填して包装する。この包装機は、包材のロールから引き出されたシート状の包材 5 0力 フォーマ 52によってチューブ 51に卷かれて筒状に成形され、プルダウンベルト 機 53により吸着されて下方に送られ、筒状にされた包材 50の重ねられた縦の縁が縦 シール機 54によりシール (溶着による封止)される。そして、計量された被計量物がチ ユーブ 51を通つて筒状の包材 50内に充填され、チューブ 51の下方に配置される横 シール機 55により先行する袋の上端と後続の袋の下端とにまたがって横方向のシー ノレ (溶着による封止)が行われる。この横方向のシールが行われることにより、先行す る袋は、前回での横方向のシールにより下端は封止されているので上下がシールさ れた完全な袋となる。そして、横シール機 55に内蔵されているカッターにより横方向 のシール部分の中央が切断されて、先行する袋と後続の袋とが分離される。 [0004] In the packaging machine, while producing a bag, the bag is filled with the objects to be weighed discharged from the combination weigher and packaged. This packaging machine is a sheet-like packaging material drawn from a roll of packaging material. The vertical edges of the packaging materials 50 that are adsorbed by the machine 53 and fed downward and are formed into a cylindrical shape are sealed (sealed by welding) by the vertical sealing machine 54. Then, the weighed objects are filled into the tubular packaging material 50 through the tube 51, and the upper end of the preceding bag and the lower end of the succeeding bag are placed by the horizontal sealing machine 55 disposed below the tube 51. In addition, a horizontal seal (sealing by welding) is performed. By performing the horizontal sealing, the preceding bag is a complete bag whose upper and lower sides are sealed because the lower end is sealed by the previous horizontal sealing. Then, the center of the horizontal seal portion is cut by the cutter built in the horizontal sealing machine 55, and the preceding bag and the subsequent bag are separated.
特許文献 1:特公平 8— 1395号公報  Patent Literature 1: Japanese Patent Publication No. 8-1395
発明の開示  Disclosure of the invention
発明が解決しょうとする課題  Problems to be solved by the invention
[0005] このような従来の組合せ秤において、高速運転の包装機に対応するためには、包 装機へ被計量物を排出する排出サイクル (順次排出される排出開始タイミングの間 隔)を短くする必要がある。そのために従来は、計量ホツバの数を一定の数、増加さ せて、いわゆるシングルシフトからダブルシフト、あるいはトリプルシフトを構成すること により、排出サイクルをシングルシフトに対して 1/2、 1/3として対応していた。しかし ながらこの構成では、排出サイクルは短くなるが、集合シュート 6から排出される被計 量物の先端力 終端までの長さが短くなることはなぐ組合せ秤力 排出された被計 量物が 1つの袋 (包装機の袋)に入ってしまうまでの時間も短縮されない。高速運転 の包装機では、横シール機 55によるシールから次のシールまでのサイクル時間が短 くなるため、組合せ秤から排出された被計量物が 1つの袋に入ってしまうまでに横方 向のシールが行われると、そのシール部分に被計量物の嚙み込みが生じるという問 題があった。 [0005] In such a conventional combination weigher, in order to support a high-speed packaging machine, the discharge cycle for discharging the objects to be weighed to the packaging machine (interval of the discharge start timing) is shortened. There is a need to. For that purpose, by increasing the number of weighing hotspots by a certain number and configuring so-called single shift to double shift or triple shift, the discharge cycle is reduced to 1/2, 1/3 with respect to single shift. It corresponded as. However, in this configuration, the discharge cycle is shortened, but the weight to be measured from the collective chute 6 does not shorten the length to the end of the tip force. The time it takes to enter one bag (packing machine bag) is not shortened. In a packaging machine operated at high speed, the cycle time from the sealing by the horizontal sealing machine 55 to the next sealing is shortened, so that the object to be weighed discharged from the combination weigher will move in the horizontal direction before it enters one bag. When sealing was performed, there was a problem that the objects to be weighed in the sealing part.
[0006] 本発明は上記のような課題を解決するためになされたもので、被計量物の 1回の排 出時間を短くするとともに排出サイクルを短くし、高速運転の包装機に対応可能な組 合せ秤を提供することを目的としている。  [0006] The present invention has been made in order to solve the above-described problems, and can shorten the time for discharging one to-be-measured item, shorten the discharge cycle, and can be applied to a high-speed packaging machine. Its purpose is to provide a combination weigher.
課題を解決するための手段  Means for solving the problem
[0007] 上記目的を達成するために、本発明の組合せ秤は、円状に列設され被計量物が 投入される複数の組合せ用ホッパからなる組合せ用ホッパ列が複数に区分された円 弧状のホッパ列からなる複数の基本グループと、それぞれ、各々の前記基本グルー プと対応して前記基本グループの下方に配設され、対応する前記基本グループの 前記組合せ用ホッパから排出される被計量物を集合させて下部に設けられた排出口 から排出させるための複数の集合シュートと、それぞれ、各々の前記基本グループ及 び前記集合シュートと対応して前記集合シュートの排出口に設けられ、前記集合シュ ートの排出口から排出される被計量物を一且貯留した後、前記被計量物を排出する ための複数の集合ホッパと、制御手段とを備え、前記制御手段は、それぞれ 1個以上 の前記基本グループからなる P個(pは基本グループの総グループ数未満の複数)の 排出グノレープを決定するとともに、それぞれの前記排出グループ内の前記組合せ用 ホッパに投入されている被計量物の重量に基づいて組合せ演算を行うことにより、投 入されている被計量物の合計重量が目標重量に対して許容範囲内であり、かつ前 記目標重量との差が最も小さレ、組合せの前記組合せ用ホッパを求める組合せ処理と 、それぞれの前記排出グノレープにおいて求められている全ての前記組合せの組合 せ用ホッパから同時に被計量物を排出させる内部排出処理と、それぞれの前記排出 グノレープを順次選択し、この選択した順に前記排出グループ内の前記組合せの組 合せ用ホッパを含む前記基本グループに対応する前記集合ホッパから被計量物を 排出させる外部排出処理とを行うようにしている。 [0007] In order to achieve the above object, the combination weigher of the present invention is arranged in a circle and the object to be weighed is arranged. A plurality of basic groups consisting of arc-shaped hopper rows, each of which is divided into a plurality of combination hopper rows composed of a plurality of combination hoppers, and below each of the basic groups corresponding to each of the basic groups A plurality of collective chutes for collecting the objects to be weighed that are discharged from the combination hoppers of the corresponding basic group and discharging them from a discharge port provided in the lower part, respectively, Corresponding to the group and the collective chute, provided at the discharge port of the collective chute, to temporarily store the objects to be discharged from the discharge port of the collective chute, and to discharge the objects to be measured A plurality of collective hoppers, and control means, each of the control means comprising P or more of one or more basic groups (p is less than the total number of basic groups) A plurality of discharge gnoles, and by performing a combination operation based on the weights of the objects weighed in the combination hoppers in each of the discharge groups, The total weight is within an allowable range with respect to the target weight, and the difference between the total weight and the target weight is the smallest, combination processing for obtaining the combination hopper of the combination, and all required for each of the discharge gnoles The internal discharge processing for discharging the objects to be weighed simultaneously from the combination hoppers of the combination and the respective discharge gnoles are sequentially selected, and the combination hoppers in the discharge group are included in the selected order. External discharge processing is performed to discharge the objects to be weighed from the collecting hopper corresponding to the basic group.
この構成によれば、組合せ用ホッパ列が区分された基本グループ、集合シュートお よび集合ホッパがそれぞれ対応して複数備えられ、 1個以上の基本グループからなる 排出グループを複数決定し、それぞれの排出グノレープにおいて組合せ演算により求 められた組合せの組合せ用ホッパから同時に被計量物が排出される。この被計量物 はそれぞれの集合シュートを通って一旦それぞれの集合ホッパに溜められ、被計量 物が充分に固まった状態で、排出グループごとに順次集合ホッパから排出されるの で、各集合ホツバから排出される 1回の排出時間を短くできるとともに排出サイクルを 短くでき、高速動作が可能となる。したがって高速運転の包装機に対応でき、包装機 での被計量物の嚙み込みの発生も防止できる。  According to this configuration, a plurality of basic groups, collective chutes and collective hoppers each having a combined hopper row are provided correspondingly, and a plurality of discharge groups composed of one or more basic groups are determined, and each discharge is determined. The object to be weighed is discharged simultaneously from the combination hopper obtained by combination calculation in Gnolepe. The objects to be weighed are temporarily accumulated in the respective collection hoppers through the respective collection chutes, and the objects to be weighed are discharged from the collection hoppers sequentially for each discharge group in a sufficiently solid state. One discharge time can be shortened and the discharge cycle can be shortened, enabling high-speed operation. Therefore, it can be applied to a packaging machine that operates at high speed, and it can also prevent stagnation of objects to be weighed in the packaging machine.
また、前記組合せ処理は、前記排出グループに属していない前記基本グループを k個(kは 1以上の整数)組み合わせてなる全ての組合せ用グループを求める第 1の 処理と、全ての前記組合せ用グループの各々に対し、前記組合せ用グループ内の 前記組合せ用ホッパに投入されている被計量物の重量に基づいて組合せ演算を行 うことにより、投入されている被計量物の合計重量が目標重量に対して許容範囲内 であり、かつ前記目標重量との差が最も小さい第 1の組合せの前記組合せ用ホッパ を求めるとともに、前記第 1の組合せの組合せ用ホッパの被計量物の合計重量を前 記組合せ用グループの最適組合せ重量とする第 2の処理と、全ての前記組合せ用グ ループのうち前記目標重量との差が最も小さい最適組合せ重量を有する前記組合 せ用グループを求め、この求められた組合せ用グループ、またはこの組合せ用ダル ープ内で前記第 1の組合せの前記組合せ用ホッパを含む前記基本グループを、前 記排出グノレープに決定する第 3の処理とからなる一連の処理を、 (p- 1)回行うことに より、(p— 1)個の前記排出グループを決定する処理と、前記 (p— 1)個の排出ダル ープに属してレ、なレ、全ての前記基本グループの前記組合せ用ホッパに投入されて レ、る被計量物の重量に基づレ、て組合せ演算を行うことにより、投入されてレ、る被計量 物の合計重量が目標重量に対して許容範囲内であり、かつ前記目標重量との差が 最も小さい第 2の組合せの前記組合せ用ホッパを求めるとともに、前記 (p— 1)個の 排出グノレープに属してレ、なレ、全ての前記基本グループ、または前記第 2の組合せの 組合せ用ホッパを含む前記基本グループを、 p個目の前記排出グループに決定する 処理とを有するようにしてもょレ、(組合せ処理 A)。 In the combination process, the basic group that does not belong to the emission group is processed. A first process for obtaining all combination groups composed of k pieces (k is an integer of 1 or more), and for each of all the combination groups, the combination hoppers in the combination group are input. The total weight of the input objects to be weighed is within the allowable range with respect to the target weight and the difference from the target weight is the smallest A second process in which the combination hopper of the first combination is obtained, and the total weight of the objects to be weighed in the combination hopper of the first combination is set to the optimum combination weight of the combination group; The combination group having the optimum combination weight having the smallest difference from the target weight among the combination groups is obtained, and the obtained combination group or the combination group is obtained. By performing (p-1) times a series of processes including the third process of determining the basic group including the combination hopper of the first combination as the discharge gnole, (p-1) — 1) the process of determining the discharge groups, and (p— 1) belonging to the (p— 1) discharge duplications, being fed into the combination hoppers of all the basic groups, By performing a combination calculation based on the weight of the object to be weighed, the total weight of the objects to be weighed is within the allowable range with respect to the target weight, and the difference from the target weight The combination hopper of the second combination having the smallest value is obtained, and the combination hopper belonging to the (p-1) discharge gnolees, the lee, all the basic groups, or the second combination The basic group including the p th emission group Yo Le also to have a process for determining, (combined treatment A).
[0008] この組合せ処理 Aを行うことにより、各排出グループにおける組合せ精度(計量精 度)の向上を図ることができる。  [0008] By performing this combination processing A, it is possible to improve the combination accuracy (measurement accuracy) in each discharge group.
[0009] また、前記組合せ処理は、それぞれ 1個以上の前記基本グループからなる(p_ 1) 個の排出候補グループを決定するとともにそれぞれの前記排出候補グループの最 適組合せ重量を求める第 1の組合せ処理と、 1個以上の前記基本グループからなる p 個目の排出候補グループを決定するとともにそれぞれの前記 P個目の排出候補ダル ープの最適組合せ重量を求め、前記 p個目の排出候補グループと前記 (p— 1)個の 排出候補グノレープとを合わせて 1つの排出候補グループセットとする第 2の組合せ処 理と、前記排出候補グループセットの p個の前記排出候補グループのそれぞれの前 記最適組合せ重量と前記目標重量との差の合計を算出する演算処理とからなる、ル ープ処理を複数回繰り返すことにより、それぞれに含まれる少なくとも 1個の排出候補 グノレープが異なる全ての排出候補グノレープセットを求めるとともに各々の前記排出 候補グノレープセットにおける前記差の合計を求める処理と、全ての前記排出候補グ ループセットのうち前記差の合計が最小である前記排出候補グループセットの p個の 前記排出候補グノレープのそれぞれを前記排出グノレープに決定する処理とを有し、 複数回繰り返されるうちの同一回数目の前記ループ処理における前記第 1の組合せ 処理は、第 2の処理によって前記排出候補グループに属していない前記基本グルー プを k個(kは 1以上の整数)組み合わせてなる任意の 1つの組合せ用グループを求 める第 1の処理と、前記組合せ用グループに対し、前記組合せ用グループ内の前記 組合せ用ホッパに投入されている被計量物の重量に基づいて組合せ演算を行うこと により、投入されている被計量物の合計重量が目標重量に対して許容範囲内であり 、かつ前記目標重量との差が最も小さい第 1の組合せの前記組合せ用ホッパを選択 するとともに、前記組合せ用グループ、または前記組合せ用グループ内で前記第 1 の組合せの前記組合せ用ホッパを含む前記基本グループを、 1個の前記排出候補 グノレープに決定し、前記第 1の組合せの組合せ用ホッパの被計量物の合計重量を 前記排出候補グノレープの最適組合せ重量とする前記第 2の処理とからなる一連の処 理を、 (p— 1)回行うことにより、前記 (p— 1)個の排出候補グループを決定する処理 であり、前記同一回数目の前記ループ処理における前記第 2の組合せ処理は、前記 (P— 1)個の排出候補グノレープに属していない全ての前記基本グループの前記組 合せ用ホッパに投入されている被計量物の重量に基づいて組合せ演算を行うことに より、投入されている被計量物の合計重量が目標重量に対して許容範囲内であり、 かつ前記目標重量との差が最も小さい第 2の組合せの前記組合せ用ホッパを求める とともに、前記 (p_ 1)個の排出候補グノレープに属してレ、なレ、全ての前記基本グルー プ、または前記第 2の組合せの組合せ用ホッパを含む前記基本グループを、 p個目 の前記排出候補グループに決定し、前記第 2の組合せの組合せ用ホツバの被計量 物の合計重量を前記 P個目の排出候補グループの最適組合せ重量とし、前記 P個目 の排出候補グループと前記 (p_ 1)個の排出候補グノレープとを合わせて 1つの前記 排出候補グノレープセットとする処理であるようにしてもよい (組合せ処理 B)。 [0009] Further, the combination process is a first combination for determining (p_1) emission candidate groups each including one or more basic groups and obtaining an optimum combination weight of each emission candidate group. Determining a pth emission candidate group consisting of one or more basic groups and determining an optimum combined weight of each of the Pth emission candidate dulps, and determining the pth emission candidate group. And the (p-1) emission candidate gnole combined to form a second emission candidate group set, and before each of the p emission candidate groups in the emission candidate group set. By repeating the loop process a plurality of times, which consists of a calculation process that calculates the sum of the difference between the optimal combination weight and the target weight, all the emission candidates with different gnoleos included in each loop process are repeated. A process of obtaining a gnolepe set and obtaining a sum of the differences in each of the emission candidate gnolepe sets, and p of the emission candidate group set having a minimum difference among all the emission candidate group sets. Each of the emission candidate gnoles is determined as the emission gnole, and the first combination process in the loop process of the same number of times that is repeated a plurality of times is assigned to the emission candidate group by a second process. Any one combination formed by combining k basic groups that do not belong (k is an integer of 1 or more) The first process for obtaining the group for the combination and the combination group is subjected to a combination calculation based on the weight of the objects to be weighed in the combination hopper in the combination group. The combination hopper of the first combination is selected, and the total weight of the objects to be weighed is within an allowable range with respect to the target weight, and the difference from the target weight is the smallest. Alternatively, the basic group including the combination hoppers of the first combination in the combination group is determined as one discharge candidate gnole, and the total of the objects to be weighed in the combination hoppers of the first combination A series of processes consisting of the second process in which the weight is the optimum combined weight of the discharge candidate gnolepe is performed (p-1) times, thereby the (p-1) discharge candidate groups. The second combination process in the loop process of the same number of times is for the combination of all the basic groups not belonging to the (P-1) emission candidate gnole. By performing a combination calculation based on the weight of the objects to be weighed in the hopper, the total weight of the objects to be weighed is within an allowable range with respect to the target weight, and The combination hopper of the second combination having the smallest difference is obtained and the combination of the (p_1) number of discharge candidate gnolees, les, all the basic groups, or the second combination. The basic group including the hopper is determined to be the p-th discharge candidate group, and the total weight of the combination objects of the second combination combination hotspots is determined as the optimal combination of the P-th discharge candidate group. And the amount, wherein the P-th discharge candidate group (p_ 1) pieces of combination of the discharge candidate Gunorepu by one of the The process may be a discharge candidate gnole set (combination process B).
この組合せ処理 Bを行うことにより、各排出グループにおける組合せ精度(計量精 度)の向上を図ることができる。また、先述の組合せ処理 Aを行う場合に比べ、 p個の 排出グループの最適組合せ重量の合計重量を少なくでき、被計量物の消費量を低 減できるという効果がある。  By performing this combination process B, it is possible to improve the combination accuracy (measurement accuracy) in each discharge group. In addition, compared with the case where the combination process A described above is performed, there is an effect that the total weight of the optimum combination weight of the p emission groups can be reduced, and the consumption of the objects to be weighed can be reduced.
また、組合せ処理 Aの場合で、前記第 1、第 2及び第 3の処理からなる一連の処理 を、 (p_ l)回行うことにより、(p_ l)個の前記排出グループを決定する処理におい て、前記 (p_ l)回のうちの少なくとも 1回、前記組合せ用グループを構成する前記基 本グループの個数の前記 kを変更するようにしてもよい。  Further, in the case of the combination process A, the series of processes including the first, second, and third processes is performed (p_l) times to determine (p_l) number of the discharge groups. Thus, at least one of the (p_l) times, the number k of the basic groups constituting the combination group may be changed.
[0010] また、組合せ処理 Bの場合で、前記第 1及び第 2の処理とからなる一連の処理を、 ( p— 1)回行うことにより、(p— 1)個の前記排出候補グループを決定する第 1の組合 せ処理において、前記(p_ l)回のうちの少なくとも 1回、前記組合せ用グループを 構成する前記基本グループの個数の前記 kを変更するようにしてもょレ、。  [0010] Further, in the case of the combination process B, a series of processes including the first and second processes is performed (p-1) times, so that (p-1) pieces of the emission candidate groups are obtained. In the first combination processing to be determined, the number k of the basic groups constituting the combination group may be changed at least one of the (p_l) times.
[0011] また、前記組合せ処理で決定する前記排出グループの個数は 2個(p = 2)または 3 個(p = 3)であるようにしてもよい。排出グノレープの個数を 2個とした場合は、 1計量サ イタルにおいて 2回の排出が可能となり、 3個とした場合は、 1計量サイクルにおいて 3 回の排出が可能となる。  [0011] Further, the number of the emission groups determined in the combination process may be two (p = 2) or three (p = 3). If the number of discharge genoles is two, it is possible to discharge twice in one weighing cycle, and if it is three, it is possible to discharge three times in one weighing cycle.
[0012] また、それぞれの前記基本グループに含まれる前記組合せ用ホッパの個数が等し レ、ように構成してもよい。この場合、組合せ用ホッパの全個数を基本グループ数で割 り切れることになる。  [0012] Further, the number of the combination hoppers included in each of the basic groups may be equal. In this case, the total number of combination hoppers can be divided by the number of basic groups.
[0013] また、全ての前記基本グループのうち少なくとも 1個の前記基本グループに含まれ る前記組合せ用ホッパの個数が他の前記基本グループに含まれる前記組合せ用ホ ツバの個数と異なるように構成してもよい。このように、各基本グループに含まれる組 合せ用ホッパの個数は必ずしも同一である必要はない。  [0013] Further, the number of the combination hoppers included in at least one of the basic groups among all the basic groups is different from the number of the combination hoppers included in the other basic groups. May be. As described above, the number of combination hoppers included in each basic group is not necessarily the same.
[0014] また、前記組合せ用ホッパは、投入される被計量物の重量を計量する計量ホツバで ある構成としてもよレ、。  [0014] Further, the combination hopper may be a weighing hopper that measures the weight of an object to be weighed.
[0015] また、前記組合せ用ホッパ列が上下 2列に配設され、上方の前記組合せ用ホッパ 列の組合せ用ホッパは、投入される被計量物の重量を計量する計量ホッパであり、 下方の前記組合せ用ホッパ列の組合せ用ホッパは、それぞれ前記計量ホッパと対応 して設けられ前記計量ホッパで計量された被計量物が投入されるメモリホッパであり、 前記計量ホッパは対応する前記メモリホッパと前記集合シュートへ選択的に被計量 物を排出可能な構成であるようにしてもょレ、。 [0015] Further, the combination hopper row is arranged in two upper and lower rows, the combination hopper of the upper combination hopper row is a weighing hopper for weighing the weight of an object to be weighed, The lower combination hoppers in the combination hopper row are memory hoppers that are provided corresponding to the weighing hoppers and into which the objects to be weighed by the weighing hoppers are put, respectively. It may be configured so that the objects to be weighed can be discharged selectively to the hopper and the collective chute.
[0016] また、それぞれの前記組合せ用ホッパと対応して前記組合せ用ホツバの上方に、 投入される被計量物の重量を計量する複数の計量ホッパが配設され、前記組合せ 用ホッパは、 2つの収容室を備え、それぞれの前記収容室に前記計量ホッパで計量 された被計量物が投入され、それぞれの前記収容室ごとに被計量物を排出可能なメ モリホッパであり、前記計量ホッパは対応する前記メモリホツバの 2つの前記収容室へ 選択的に被計量物を排出可能な構成であり、前記制御手段は、前記組合せ処理に おける組合せ演算を、それぞれの前記メモリホツバの各収容室に投入されてレ、る被 計量物の重量に基づいて行うことにより、前記メモリホツバの収容室の組合せを決定 し、前記内部排出処理にぉレ、て前記決定した組合せの前記収容室から被計量物を 排出させ、前記外部排出処理において前記決定した組合せの前記収容室を有する 前記メモリホッパを含む前記基本グループに対応する前記集合ホッパから被計量物 を ί非出させるようにしてもよい。  [0016] In addition, a plurality of weighing hoppers for weighing the weight of the objects to be weighed are disposed above the combination hoppers in correspondence with the respective combination hoppers. Each of the storage chambers is a memory hopper in which an object to be weighed by the weighing hopper is charged and can be discharged into each of the storage chambers. The weighing means can selectively discharge the objects to be measured into the two storage chambers of the memory hot bar, and the control means inputs the combination calculation in the combination processing into the respective storage chambers of the memory hot bars. The combination of the storage chambers of the memory hot bar is determined based on the weight of the object to be weighed, and the combination of the storage chambers determined by the internal discharge processing is determined. The objects to be weighed may be discharged, and the objects to be weighed may be removed from the collective hopper corresponding to the basic group including the memory hopper having the storage chamber of the determined combination in the external discharge processing. .
[0017] 前記組合せ用ホッパは、 2つの計量室を備え、それぞれの前記計量室に投入され る被計量物の重量を計量し、それぞれの前記計量室ごとに被計量物を排出可能な 計量ホッパであり、前記制御手段は、前記組合せ処理における組合せ演算を、それ ぞれの前記計量ホッパの各計量室に投入されている被計量物の重量に基づいて行 うことにより、前記計量ホッパの計量室の組合せを決定し、前記内部排出処理におい て前記決定した組合せの前記計量室から被計量物を排出させ、前記外部排出処理 において前記決定した組合せの前記計量室を有する前記計量ホッパを含む前記基 本グノレープに対応する前記集合ホッパから被計量物を排出させるようにしてもよい。  [0017] The combination hopper includes two weighing chambers, measures the weight of the objects to be weighed in the respective weighing chambers, and can discharge the objects to be weighed for each of the weighing chambers. And the control means performs the combination operation in the combination processing based on the weight of the objects to be weighed in the respective weighing chambers of the respective weighing hoppers, thereby measuring the weighing hoppers. Including a weighing hopper having a combination of chambers, discharging an object to be weighed from the weighing chamber of the determined combination in the internal discharge process, and having the weighing chamber of the determined combination in the external discharge process The objects to be weighed may be discharged from the collecting hopper corresponding to the basic gnolepe.
[0018] それぞれの前記組合せ用ホツバと対応して前記組合せ用ホッパの上方に、 2つの 計量室を備え、それぞれの前記計量室に投入される被計量物の重量を計量し、それ ぞれの前記計量室ごとに被計量物を排出可能な複数の計量ホッパが配設され、前 記組合せ用ホッパは、対応する前記計量ホッパの各計量室と対応して 2つの収容室 を備え、それぞれの前記収容室に前記計量ホッパの対応する計量室からの被計量 物が投入され、それぞれの前記収容室ごとに被計量物を排出可能なメモリホッパで あり、前記制御手段は、前記組合せ処理における組合せ演算を、それぞれの前記メ モリホツバの各収容室に投入されている被計量物の重量に基づいて行うことにより、 前記メモリホツバの収容室の組合せを決定し、前記内部排出処理において前記決定 した組合せの前記収容室から被計量物を排出させ、前記外部排出処理において前 記決定した組合せの前記収容室を有する前記メモリホッパを含む前記基本グループ に対応する前記集合ホッパから被計量物を排出させるようにしてもよい。 [0018] Two weighing chambers are provided above the combination hopper corresponding to each combination hot bar, and the weights of the objects to be weighed in the respective weighing chambers are weighed. Each weighing chamber is provided with a plurality of weighing hoppers capable of discharging the objects to be weighed, and the combination hopper has two storage chambers corresponding to each weighing chamber of the corresponding weighing hopper. A weighing hopper from the corresponding weighing chamber of the weighing hopper, and the weighing means can discharge the weighing object for each of the storage chambers, and the control means includes: The combination calculation in the combination process is performed based on the weight of the objects to be weighed in the respective storage chambers of each of the memory hobbies, thereby determining the combination of the storage chambers of the memory hot bar, and in the internal discharge process The objects to be weighed are discharged from the storage chambers of the determined combination, and the objects to be weighed from the collective hopper corresponding to the basic group including the memory hopper having the storage chambers of the combination determined in the external discharge process. May be discharged.
発明の効果  The invention's effect
[0019] 本発明は、以上に説明した構成を有し、被計量物の 1回の排出時間を短くするとと もに排出サイクルを短くし、高速運転の包装機に対応可能な組合せ秤を提供するこ とができるとレ、う効果を奏する。  [0019] The present invention provides a combination weigher that has the above-described configuration, shortens the discharge time of an object to be weighed, shortens the discharge cycle, and is compatible with a high-speed packaging machine. If you can do it, it will have a positive effect.
本発明の上記目的、他の目的、特徴、及び利点は、添付図面参照の下、以下の好 適な実施態様の詳細な説明から明らかにされる。  The above object, other objects, features, and advantages of the present invention will become apparent from the following detailed description of preferred embodiments with reference to the accompanying drawings.
図面の簡単な説明  Brief Description of Drawings
[0020] [図 1]図 1 (a)は、本発明の実施の形態の組合せ秤の側方から視た断面の概略模式 図であり、図 1 (b)は、本発明の実施の形態の組合せ秤の集合シュート及び集合ホッ パを上方力 視た概略模式図である。  [0020] [Fig. 1] Fig. 1 (a) is a schematic diagram of a cross section viewed from the side of a combination weigher according to an embodiment of the present invention, and Fig. 1 (b) is an embodiment of the present invention. FIG. 6 is a schematic diagram of the combination chute and the collection hopper of the combination weigher as viewed from above.
[図 2]図 2は、図 1 (a)、(b)に示された集合ホッパの概略斜視図である。  FIG. 2 is a schematic perspective view of the collective hopper shown in FIGS. 1 (a) and 1 (b).
[図 3]図 3は、本発明の実施の形態 1の組合せ秤における動作のフローチャートであ る。  FIG. 3 is a flowchart of the operation of the combination weigher according to the first embodiment of the present invention.
[図 4]図 4は、本発明の実施の形態の組合せ秤における動作の一例を示すタイミング チャートである。  FIG. 4 is a timing chart showing an example of the operation of the combination weigher according to the embodiment of the present invention.
[図 5]図 5は、本発明の実施の形態の組合せ秤における動作の一例を示すタイミング チャートである。  FIG. 5 is a timing chart showing an example of the operation of the combination weigher according to the embodiment of the present invention.
[図 6]図 6は、本発明の実施の形態 2の組合せ秤における動作のフローチャートであ る。  FIG. 6 is a flowchart of the operation of the combination weigher according to the second embodiment of the present invention.
[図 7]図 7 (a)は、本発明の実施の形態の組合せ秤における他の例の集合シュート及 び集合ホッパを側方から視た概略模式図であり、図 7 (b)は、上記他の例の集合シュ ート及び集合ホッパを上方から視た概略模式図である。 [FIG. 7] FIG. 7 (a) shows another example of a collective chute and another example of the combination weigher according to the embodiment of the present invention. And FIG. 7 (b) is a schematic view of the collective shoot and collective hopper of the other example as seen from above.
[図 8]図 8は、本発明の実施の形態の組合せ秤において用いるホッパの他の例を示 す概略模式図である。  FIG. 8 is a schematic diagram showing another example of a hopper used in the combination weigher according to the embodiment of the present invention.
[図 9]図 9は、本発明の実施の形態の組合せ秤において用いるホッパの他の例を示 す概略模式図である。  FIG. 9 is a schematic diagram showing another example of a hopper used in the combination weigher according to the embodiment of the present invention.
[図 10]図 10は、本発明の実施の形態の組合せ秤において用いるホッパの他の例を 示す概略模式図である。  FIG. 10 is a schematic diagram showing another example of a hopper used in the combination weigher according to the embodiment of the present invention.
[図 11]図 11は、本発明の実施の形態の組合せ秤において用いるホッパの他の例を 示す概略模式図である。  FIG. 11 is a schematic diagram showing another example of a hopper used in the combination weigher according to the embodiment of the present invention.
[図 12]図 12は、従来の組合せ秤の構成を示す概略模式図である。  FIG. 12 is a schematic diagram showing a configuration of a conventional combination weigher.
[図 13]図 13は、組合せ秤の下方に設置される包装機の構成を示す概略模式図であ る。  FIG. 13 is a schematic diagram showing a configuration of a packaging machine installed below the combination weigher.
符号の説明  Explanation of symbols
[0021] 1 分散フィーダ [0021] 1 Distributed feeder
2 リニアフィーダ  2 Linear feeder
3 供給ホッパ  3 Supply hopper
4 計量ホッパ  4 Weighing hopper
5 メモリホッパ  5 Memory hopper
6A〜6D 集合シュート  6A-6D collective shoot
7A〜7D 集合ホッパ  7A-7D Collective hopper
7a〜7d 集合ホッパ  7a-7d Collective hopper
21 制御部  21 Control unit
発明を実施するための最良の形態  BEST MODE FOR CARRYING OUT THE INVENTION
[0022] 以下、本発明の好ましい実施の形態を、図面を参照しながら説明する。 Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.
[0023] (実施の形態 1) [0023] (Embodiment 1)
図 1 (a)は、本発明の実施の形態の一構成例の組合せ秤の側方から視た断面の概 略模式図であり、図 1 (b)は、本発明の実施の形態の一構成例の組合せ秤の集合シ ユート及び集合ホッパを上方から視た概略模式図である。 FIG. 1 (a) is a schematic schematic view of a cross section viewed from the side of a combination weigher of one configuration example of the embodiment of the present invention, and FIG. 1 (b) is one embodiment of the present invention. A set of combination weighers in the configuration example It is the schematic diagram which looked at the ute and the collection hopper from the upper part.
本実施の形態の組合せ秤は、装置上部の中央に、外部の供給装置から供給される 被計量物を振動によって放射状に分散させる円錐形の分散フィーダ 1が設けられて いる。分散フィーダ 1の周囲には、分散フィーダ 1から送られてきた被計量物を振動に よって各供給ホッパ 3に送りこむためのリニアフィーダ 2が設けられている。リニアフィ ーダ 2の下方には、複数の供給ホッパ 3、計量ホッパ 4がそれぞれ対応して設けられ、 円状に配置されている。供給ホッパ 3はリニアフィーダ 2から送りこまれた被計量物を 受け取り、その下方に配置された計量ホッパ 4が空になるとゲートを開いて計量ホッ パ 4へ被計量物を投入する。計量ホッパ 4にはロードセル等の重量センサ 41が取り 付けられており、この重量センサ 41が計量ホッパ 4内の被計量物の重量を計測する。 以上の構成については、図 12に示す従来例と同様である。本実施の形態では、 4つ に分割された集合シュート 6A〜6Dが、計量ホッパ 4の下方に設けられ、集合シユー ト 6A〜6Dのそれぞれの排出口に集合ホッパ 7A〜7Dが設けられている。集合シュ ート 6A〜6Dは、略逆円錐状のシュート 61が仕切り壁 62で 4つに仕切られて構成さ れている。また、この 4つの集合シュート 6A〜6Dのそれぞれは、円状に配置されて レ、る全部の計量ホッパ 4のうちの 1/4の個数の計量ホッパ 4から排出される被計量物 を受けるように、全個数のうちの 1/4の個数の計量ホッパ 4と対応して位置している。 計量ホッパ 4から排出された被計量物は、その計量ホッパ 4と対応する集合シュート 6 A〜6D上を滑り集合ホッノ 7A〜7Dにー且溜められる。集合ホッパ 7A〜7Dの概略 斜視図を図 2に示す。集合ホッパ 7A〜7Dのそれぞれは、側板 71と 2つの仕切り板 7 2とゲート 73とで被計量物の収容部を構成してレ、る。各仕切り板 72は隣接する集合 ホッパと共有されて、 4つの集合ホッパ 7A〜7Dがー体的に形成されている。集合ホ ッパ 7A〜7Dのそれぞれは、ゲート 73が外側に開かれることで被計量物が排出され る(例えば集合ホッパ 7Aのゲート 73が開かれる方向を矢印 74で示している)。制御 部 21は組合せ秤の全体の動作を制御するとともに組合せ処理を行う。なお、この組 合せ秤の下方には例えば図 13に示す包装機が設置され、集合ホッパ 7A〜7Dのそ れぞれから排出される被計量物は、包装機の筒状のチューブ 51の上部が広くなつて いる投入口へ投入される。 次に、本実施の形態の組合せ秤の動作を説明する。本実施の形態において、例え ば図 1 (a)、 (b)の構成の場合、それぞれ 4つの集合シュート 6A〜6Dと集合ホッパ 7 A〜7Dが対応して設けられており、集合シュート 6A及び集合ホッパ 7Aに対応して 配設されている計量ホッパ 4を基本グループ A、集合シュート 6B及び集合ホッパ 7B に対応して配設されている計量ホッパ 4を基本グノレープ B、集合シュート 6C及び集合 ホッパ 7Cに対応して配設されている計量ホッパ 4を基本グループ C、集合シュート 6 D及び集合ホッパ 7Dに対応して配設されている計量ホッパ 4を基本グループ Dとす る。 In the combination weigher of the present embodiment, a conical dispersion feeder 1 is provided in the center of the upper part of the device to disperse the object to be weighed supplied from an external supply device radially by vibration. Around the dispersion feeder 1, a linear feeder 2 is provided for feeding an object to be weighed sent from the dispersion feeder 1 to each supply hopper 3 by vibration. Below the linear feeder 2, a plurality of supply hoppers 3 and weighing hoppers 4 are provided correspondingly and arranged in a circular shape. The supply hopper 3 receives the object to be weighed sent from the linear feeder 2, and when the weighing hopper 4 arranged below it is empty, the gate is opened and the object to be weighed is put into the weighing hopper 4. A weight sensor 41 such as a load cell is attached to the weighing hopper 4, and the weight sensor 41 measures the weight of an object to be weighed in the weighing hopper 4. The above configuration is the same as that of the conventional example shown in FIG. In the present embodiment, the four divided chutes 6A to 6D are provided below the weighing hopper 4, and the collection hoppers 7A to 7D are provided at the discharge ports of the collection shunts 6A to 6D, respectively. . The collective shunts 6A to 6D are configured by a substantially inverted conical chute 61 divided into four by a partition wall 62. Further, each of the four collective chutes 6A to 6D is arranged in a circle so as to receive the objects to be weighed discharged from the weighing hoppers 4 of the total number of the weighing hoppers 4. Furthermore, it is positioned corresponding to 1/4 of the total number of weighing hoppers 4. The objects to be weighed discharged from the weighing hopper 4 slide on the collecting chutes 6A to 6D corresponding to the weighing hopper 4 and are stored in the collecting hops 7A to 7D. A schematic perspective view of the collecting hoppers 7A to 7D is shown in FIG. Each of the collecting hoppers 7A to 7D is configured by a side plate 71, two partition plates 72, and a gate 73 that constitute an accommodation portion for an object to be weighed. Each partition plate 72 is shared with adjacent collecting hoppers, and four collecting hoppers 7A to 7D are formed in a body. In each of the collecting hoppers 7A to 7D, the objects to be weighed are discharged by opening the gate 73 outward (for example, the direction in which the gate 73 of the collecting hopper 7A is opened is indicated by an arrow 74). The control unit 21 controls the overall operation of the combination weigher and performs combination processing. For example, the packaging machine shown in FIG. 13 is installed below the combination weigher, and the objects to be weighed discharged from each of the collecting hoppers 7A to 7D are placed above the cylindrical tube 51 of the packaging machine. Is thrown into the wide inlet. Next, the operation of the combination weigher of this embodiment will be described. In the present embodiment, for example, in the case of the configuration shown in FIGS. 1 (a) and (b), four collective chutes 6A to 6D and collective hoppers 7A to 7D are provided correspondingly. Weighing hopper 4 arranged corresponding to collecting hopper 7A is set as basic group A, collecting chute 6B and collecting hopper 7B, weighing hopper 4 arranged corresponding to collecting hopper 7B is set as basic gnolepe B, collecting chute 6C and collecting hopper Weighing hopper 4 disposed corresponding to 7C is defined as basic group C, weighing hopper 4 disposed corresponding to collecting chute 6D and collecting hopper 7D as basic group D.
制御部 21は、後で詳述する組合せ処理によって、基本グループを組合せた複数の 排出グノレープを求めるとともに、各排出グノレープを求める際に、その排出グループに 属する計量ホッパ 4の計量値 (重量センサ 41により計測される計量ホッパ 4内の被計 量物の重量)に基づいて組合せ演算を行うことにより、排出グノレープに属する計量ホ ッパ 4の中力 排出すべきホッパの組合せを決定しておく。この決定した組合せに該 当する計量ホッパ 4のゲートを開閉することにより被計量物が集合シュート上へ排出さ れ、集合ホッパに溜められる。また、制御部 21は、包装機からの投入指令信号を受 けて各排出グループに対応する集合ホッパ(7A〜7D)ごとに、順次、ゲートを開き、 ゲートが開かれた集合ホッパから被計量物が排出され、包装機の筒状のチューブ 51 へ投入される。 The control unit 21 obtains a plurality of discharge gnoles combined with the basic group by combination processing described in detail later, and when obtaining each discharge gnole, the weighing value of the weighing hopper 4 belonging to the discharge group (weight sensor 41). previously determining the combination of the weighing object on the basis of weight) of by performing combination calculation, hoppers should Churyoku discharge of the weighing Ho Tsu path 4 belonging to the discharge Gunorepu in the weighing hoppers 4 which are measured by. By opening and closing the gate of the weighing hopper 4 corresponding to this determined combination, the objects to be weighed are discharged onto the collecting chute and stored in the collecting hopper. In addition, the control unit 21 receives the input command signal from the packaging machine and sequentially opens the gate for each of the collecting hoppers (7A to 7D) corresponding to each discharge group, and the weighing is performed from the collecting hopper with the gate opened. The material is discharged and put into the cylindrical tube 51 of the packaging machine.
[0025] 図 3は、本実施の形態の組合せ秤の動作を示すフローチャートであり、 1計量サイク ル中において被計量物を外部(例えば包装機)へ排出する回数を p回とする(pは複 数)。上記の組合せ処理は、ステップ S1〜S8の処理である。なお、制御部 21は、メ モリを内蔵しており、組合せ処理で求める必要な情報 (後出の組合せ用グノレープ及 び排出グノレープがどの基本グループの計量ホツバで構成されてレ、るかの情報、最適 組合せの計量ホッパを示す情報及び最適組合せ重量の情報等)をメモリに記憶する  [0025] Fig. 3 is a flowchart showing the operation of the combination weigher of the present embodiment. In one weighing cycle, the number of times the object to be weighed is discharged to the outside (for example, a packaging machine) is p times (p is Multiple). The above combination process is a process of steps S1 to S8. The control unit 21 has a built-in memory, and information necessary for the combination processing (information on which basic group of weighing hobbies the combination gnole and discharge gnole described later are composed of) , Information indicating the weighing hopper of the optimum combination, information on the optimum combination weight, etc.) are stored in the memory
[0026] まず、ステップ S1で、 nを 1に初期設定する。この nは、後述のステップ S5の処理に より求められる排出グノレープの個数を示す。 [0026] First, in step S1, n is initially set to 1. This n indicates the number of discharged gnoles determined by the process of step S5 described later.
[0027] ステップ S2では、決定済みの排出グループに属していない基本グループを k個組 み合わせてなる全ての組合せ用グループを求める。最初は、決定済みの排出グルー プは無レ、ので、全ての基本グループから k個の基本グループを組合せてなるグルー プを、それぞれ組合せ用グループとする。 [0027] In step S2, k basic groups that do not belong to the determined emission group are set. Find all the combined groups. Initially, there are no determined emission groups, so a group consisting of k basic groups from all basic groups is set as a combination group.
[0028] ステップ S3では、選択済みの組合せ用グループ以外の組合せ用グループを 1つ選 択し、その組合せ用グループ内の計量ホッパ 4の計量値に基づレ、て組合せ演算を行 レ、、計量値の合計が目標重量に対して許容範囲内であり、かつ目標重量との差が最 も小さい組合せ (最適組合せ)の計量ホッパ 4を選択するとともに、その最適組合せの 計量ホッパ 4の計量値の合計を最適組合せ重量とする。最初は、選択済みの組合せ 用グループは無いので、全ての組合せ用グループの中から任意の 1つの組合せ用 グループを選択し、上記の組合せ演算を行う。  [0028] In step S3, one combination group other than the selected combination group is selected, and the combination calculation is performed based on the measurement value of the weighing hopper 4 in the combination group. The weighing hopper 4 of the combination (optimal combination) in which the total of the weighing values is within the allowable range with respect to the target weight and the difference from the target weight is the smallest is selected, and the weighing value of the weighing hopper 4 of the optimum combination is selected. Is the optimum combined weight. Initially, there is no selected combination group, so select any one combination group from all the combination groups and perform the above combination calculation.
[0029] ステップ S4では、ステップ S2で求めた組合せ用グループのうち、ステップ S3での 組合せ演算の対象に選択されていない組合せ用グノレープが有るか否かを判定し、 有る場合には、ステップ S3を繰り返し行い、全ての組合せ用グノレープに対しステップ S3の処理が行われるとステップ S 5へ進む。  [0029] In step S4, it is determined whether or not there is a combination gnole that is not selected as a target of the combination operation in step S3 among the combination groups obtained in step S2. If so, step S3 Is repeated, and when the processing of step S3 is performed for all the combination gnoles, the process proceeds to step S5.
[0030] ステップ S5では、全ての組合せ用グループの中で、最適組合せ重量が最も目標重 量に近レ、組合せ用グノレープを求め、その組合せ用グループ内で最適組合せの計量 ホッパ 4を含む基本グループを、 n番目の排出グループに決定する。 [0030] In step S5, the optimum combination weight is the closest to the target weight among all the combination groups, the combination gnole is obtained, and the basic group including the weighing hopper 4 of the optimum combination in the combination group. To the nth emission group.
[0031] 次にステップ S6では、 nが p— 1と等しいか否かを判定し、等しくなければステップ S 7で nを 1増加して、ステップ S2からの処理を繰り返し、等しければステップ S8へ進む 。すなわち、 p— 1個の排出グループを決定するまで、ステップ S2〜S5の処理を繰り 返す。  [0031] Next, in step S6, it is determined whether or not n is equal to p-1. If not equal, n is incremented by 1 in step S7, and the processing from step S2 is repeated. move on . That is, p—Repeat steps S2 to S5 until one emission group is determined.
[0032] ステップ S8では、上記の p_ l個の排出グループに属していない全ての基本グル ープ内の計量ホッパ 4の計量値に基づいて組合せ演算を行レ、、計量値の合計が目 標重量に対して許容範囲内であり、かつ目標重量との差が最も小さい組合せ (最適 組合せ)の計量ホッパ 4を選択するとともに、その最適組合せの計量ホッパ 4の計量 値の合計を最適組合せ重量とする。ここでの最適組合せの計量ホッパ 4を含む基本 グループを p番目の排出グノレープに決定する。  [0032] In step S8, combination calculation is performed based on the measurement values of the weighing hoppers 4 in all the basic groups not belonging to the p_l emission groups, and the total of the measurement values is the target. Select the weighing hopper 4 of the combination that is within the allowable range with respect to the weight and has the smallest difference from the target weight (optimal combination), and calculate the sum of the weighing values of the weighing hopper 4 of the optimum combination as the optimum combined weight. To do. The basic group including the weighing hopper 4 of the optimum combination here is determined as the p-th discharge gnole.
[0033] 以上のステップ S1〜S8の組合せ処理により、 p個の排出グループが決定される。 次にステップ S9では、 p個全ての排出グノレープにおける最適組合せの計量ホッパ 4 のゲートを同時に開き、被計量物を集合ホッパへ供給する。 [0033] By the combination processing of steps S1 to S8, p discharge groups are determined. Next, in step S9, the gates of the weighing hoppers 4 of the optimum combination in all the p discharge gnoles are simultaneously opened, and the objects to be weighed are supplied to the collecting hopper.
[0034] 次にステップ S10では、例えば包装機からの投入指令信号を入力する度に、各排 出グノレープに対応する集合ホッパごとに、順次、ゲートを開き、被計量物を包装機へ 排出する。すなわち、包装機からの投入指令信号を入力する度に、排出グループご との最適組合せ重量の被計量物が排出される。  [0034] Next, in step S10, for example, every time an input command signal from a packaging machine is input, the gate is opened sequentially for each collecting hopper corresponding to each discharge gnole, and the objects to be weighed are discharged to the packaging machine. . In other words, each time an input command signal is input from the packaging machine, an object to be weighed having an optimum combined weight for each discharge group is discharged.
[0035] 以上の処理、特にステップ S1〜S8の組合せ処理を、図 1 (a)、(b)の構成に対して 適用した場合についてより具体的に説明する。例えば、 A〜Dの 4個の各基本グルー プには、 6個ずつの計量ホッパ 4が設けられているものとし、組合せ用グループは基 本グノレープを 2個組合せてなるものとし (k = 2)、最適組合せの計量ホッパ 4は 4個選 択されるものとし、 1計量サイクル中での排出回数を 2回とする(p = 2)。  [0035] The case where the above processing, in particular, the combination processing of steps S1 to S8 is applied to the configuration of Figs. 1 (a) and (b) will be described more specifically. For example, each of the four basic groups A to D is provided with six weighing hoppers 4, and the combination group is composed of two basic gnorapes (k = 2). ) Four weighing hoppers 4 of the optimum combination shall be selected, and the number of discharges in one weighing cycle shall be 2 (p = 2).
[0036] まず、ステップ S1で、 nを 1に初期設定する。  First, in step S1, n is initially set to 1.
[0037] ステップ S2では、最初は、決定済みの排出グループは無いので、全ての基本グノレ ープ A〜Dから 2個組合せてなる、例えば基本グループ Aと Bを組合せて 1つの組合 せ用グループとする。同様に、基本グループ Aと C、基本グループ Aと D、基本ダル ープ Bと C、基本グループ Bと D、基本グループ Cと Dをそれぞれ組合せて組合せ用 グノレープとし、全部で 6 (= C )組の組合せ用グループを求める。  [0037] In step S2, there is no emission group that has been decided at first. Therefore, two basic gnoles A to D are combined, for example, basic group A and B are combined into one combination group. And Similarly, basic groups A and C, basic groups A and D, basic loops B and C, basic groups B and D, and basic groups C and D are combined into a combined gnorape, for a total of 6 (= C) Find a group for a combination of pairs.
4 2  4 2
[0038] ステップ S3では、最初は、選択済みの組合せ用グループは無いので、全ての組合 せ用グループの中から任意の 1つ、例えば基本グループ Aと Bを組合せた組合せ用 グノレープを選択し、その組合せ用グループ内で組合せ演算を行い、最適組合せの 計量ホッパ 4を 4個選択するとともに、最適組合せの計量ホッパ 4の計量値の合計を 最適組合せ重量とする。この場合、 495 (= C )通りの組合せの中から最適組合せ  [0038] In step S3, since there is no combination group selected at first, any one of all the combination groups, for example, a combination gnole combining basic groups A and B is selected, The combination calculation is performed in the group for the combination, and four weighing hoppers 4 of the optimum combination are selected, and the total weight value of the weighing hopper 4 of the optimum combination is set as the optimum combination weight. In this case, the optimal combination from among 495 (= C) combinations
12 4  12 4
の計量ホッパ 4が選択される。  The weighing hopper 4 is selected.
[0039] ステップ S4により、ステップ S2で求めた組合せ用グループのうち、ステップ S3での 組合せ演算の対象に選択されていない組合せ用グノレープが有る場合には、ステップ S3が繰り返し行われる。これにより、前述の 6組全ての組合せ用グノレープに対し、最 適組合せの計量ホッパ 4及び最適組合せ重量が求められる。 In step S4, when there is a combination gnole that is not selected as a combination calculation target in step S3 among the combination groups obtained in step S2, step S3 is repeatedly performed. As a result, the optimum combination weighing hopper 4 and the optimum combination weight are obtained for all the above-mentioned six combination gnorapes.
ステップ S5では、全ての組合せ用グループの中で、最適組合せ重量が最も目標重 量に近レ、組合せ用グノレープを求め、その組合せ用グループ内で最適組合せの計量 ホッパ 4を含む基本グループを、 1番目(n= l)の排出グループに決定する。この排 出グループ内の最適組合せの計量ホッパ 4は、 C X C = 2970通りの組合せの中 In step S5, the optimal combination weight is the most target weight among all the combination groups. Gnole for combination is obtained near the quantity, and the basic group including the weighing hopper 4 of the optimum combination in the combination group is determined as the first (n = l) discharge group. The optimal combination of weighing hoppers 4 in this discharge group is CXC = 2970 combinations.
4 2 12 4  4 2 12 4
力、ら選択されたものである。ここで、各基本グループには 6個の計量ホッパ 4が設けら れているので、 4個選択されている最適組合せの計量ホッパ 4は、組合せ用グループ を構成してレ、る例えば基本グループ Aと Bの両方に属する場合とレ、ずれか一方のみ に属する場合とがある。最適組合せの計量ホッパ 4が基本グノレープ Aと Bの両方に属 していれば、基本グループ Aと Bが排出グループとなり、基本グループ Aのみに属し ていれば、基本グループ Aのみが排出グループとなり、基本グループ Bのみに属して いれば、基本グノレープ Bのみが排出グノレープとなる。 The power is chosen. Here, since six weighing hoppers 4 are provided in each basic group, the four weighing hoppers 4 of the optimal combination selected constitute a combination group, for example, basic group A. There are cases where both belong to both B and B, and some belong to either one or the other. If the optimal combination weighing hopper 4 belongs to both basic gnole A and B, then basic groups A and B are emission groups, and if it belongs only to basic group A, only basic group A is the emission group, If it belongs to only basic group B, only basic gnolepe B becomes the emission gnolepe.
次にステップ S6では、 nが p—1と等しいか否かを判定する。この例では、 n= l、 p 力 ¾で、 p— 1 = 1となり、等しくなるのでステップ S8へ進む。  Next, in step S6, it is determined whether n is equal to p−1. In this example, when n = l and p force ¾, p−1 = 1 and equal, so the process proceeds to step S8.
ステップ S8では、例えば、ステップ S5で、基本グループ Bと Cが排出グループに決 定されていたとすると、排出グノレープに属していない基本グノレープ Aと D内の計量ホ ッパ 4の計量値に基づレ、て組合せ演算を行レ、、最適組合せの計量ホッパ 4を 4個選 択するとともに、その最適組合せの計量ホッパ 4の計量値の合計を最適組合せ重量 とする。そして、最適組合せの計量ホッパ 4を含む基本グノレープを 2番目の排出ダル ープに決定する。また、ステップ S5で、 1個の基本グループ Aが排出グループに決定 されていたとすると、排出グループに属していない 3個の基本グループ Bと Cと D内の 計量ホッパ 4の計量値に基づレ、て組合せ演算を行レ、、最適組合せの計量ホッパ 4を 4個選択するとともに、その最適組合せの計量ホッパ 4の計量値の合計を最適組合 せ重量とする。そして、最適組合せの計量ホッパ 4を含む基本グループを 2番目の排 出グノレープに決定する。以上の処理により、 2個の排出グループが決定される。 次に、基本グループが 7個ある場合 (集合シュートおよび集合ホッパが 7個ある場合 )のステップ S1〜S8の組合せ処理を具体的に説明する。例えば、 A〜Gの 7個の各 基本グループには、 4個ずつの計量ホッパ 4が設けられているものとし、組合せ用グ ループは基本グループを 2個組合せてなるものとし(k= 2)、最適組合せの計量ホッ パ 4は 4個選択されるものとし、 1計量サイクル中での排出回数を 3回とする(p = 3)。 まず、ステップ SIで、 nを 1に初期設定する。 In step S8, for example, if basic groups B and C were determined to be emission groups in step S5, based on the measurement value of weighing hopper 4 in basic gnole A and D that do not belong to the emission gnole. The combination calculation is performed, and four weighing hoppers 4 of the optimum combination are selected, and the sum of the weighing values of the weighing hopper 4 of the optimum combination is set as the optimum combination weight. Then, the basic gnole including the optimal combination of weighing hoppers 4 is determined as the second discharge dulp. In addition, if one basic group A is determined to be the discharge group in step S5, it is based on the measurement values of the three basic groups B, C and D that do not belong to the discharge group. Then, the combination calculation is performed, and four weighing hoppers 4 of the optimum combination are selected, and the sum of the weighing values of the weighing hopper 4 of the optimum combination is set as the optimum combined weight. Then, the basic group including the optimal combination of weighing hoppers 4 is determined as the second discharge genole. Through the above process, two emission groups are determined. Next, the combination process of steps S1 to S8 when there are seven basic groups (when there are seven collective chutes and seven collective hoppers) will be specifically described. For example, each of the seven basic groups A to G is provided with four weighing hoppers 4, and the combination group is composed of two basic groups (k = 2). Assuming that 4 weighing hoppers 4 of the optimal combination are selected, the number of discharges per weighing cycle is 3 (p = 3). First, in step SI, n is initialized to 1.
[0041] ステップ S2では、最初は、決定済みの排出グループは無いので、全ての基本グノレ ープ A〜Dから 2個組合せてなる、基本グループ Aと B、 Aと C、 · · ·、 Aと G、 Bと C、 B と D、 · · ·、 Bと G、 Cと D、 · · ·、 Fと Gの 21 (= C )組の組合せ用グループを求める。 [0041] In step S2, there is no determined emission group at first, so basic groups A and B, A and C, which are a combination of two basic gnoles A to D, A And G, B and C, B and D, ···, B and G, C and D, ···, F and G 21 (= C) combinations are obtained.
7 2  7 2
[0042] ステップ S3では、前述の基本グループ力 個の場合と同様にして、最初は、選択済 みの組合せ用グループは無いので、全ての組合せ用グループの中から任意の 1つ、 例えば基本グループ Aと Bを組合せた組合せ用グループを選択し、その組合せ用グ ループ内で組合せ演算を行い、最適組合せの計量ホッパ 4を選択するとともに、最適 組合せの計量ホッパ 4の計量値の合計を最適組合せ重量とする。この場合、 70 (=  [0042] In step S3, as in the case of the basic group force described above, initially there is no selected combination group, so any one of all the combination groups, for example, the basic group, is selected. Select a combination group that combines A and B, perform combination calculation within the combination group, select the optimal combination weighing hopper 4, and optimally combine the weighing values of the optimal combination weighing hopper 4 Weight. In this case, 70 (=
8 8
C )通りの組合せの中から最適組合せの計量ホッパ 4が選択される。 C) The optimum combination weighing hopper 4 is selected from the combinations.
4  Four
[0043] ステップ S4により、ステップ S2で求めた組合せ用グループのうち、ステップ S3での 組合せ演算の対象に選択されていない組合せ用グノレープが有る場合には、ステップ S3が繰り返し行われる。これにより、前述の 21組全ての組合せ用グループに対し、 最適組合せの計量ホッパ 4及び最適組合せ重量が求められる。  In step S4, when there is a combination gnole that is not selected as a combination operation target in step S3 among the combination groups obtained in step S2, step S3 is repeatedly performed. As a result, the optimum combination weighing hopper 4 and the optimum combination weight are obtained for all the above-mentioned 21 combination groups.
[0044] ステップ S5では、全ての組合せ用グループの中で、最適組合せ重量が最も目標重 量に近レ、組合せ用グノレープを求め、その組合せ用グループ内で最適組合せの計量 ホッパ 4を含む基本グループを、 1番目(n= l)の排出グループに決定する。この排 出グループ内の最適組合せの計量ホッパ 4は、 C X C = 1470通りの組合せの中 [0044] In step S5, the optimum combination weight is the closest to the target weight among all the combination groups, a combination gnole is obtained, and the basic group including the weighing hopper 4 of the optimum combination in the combination group. To the first (n = l) emission group. The weighing hopper 4 of the optimal combination in this discharge group is CXC = 1470 combinations.
7 2 8 4  7 2 8 4
力 選択されたものである。ここで、各基本グループには 4個の計量ホッパ 4が設けら れているので、 4個選択されている最適組合せの計量ホッパ 4は、組合せ用グループ を構成してレ、る例えば基本グループ Aと Bの両方に属する場合とレ、ずれか一方のみ に属する場合とがある。  Force is the one that is selected. Here, since there are four weighing hoppers 4 in each basic group, the four optimally selected weighing hoppers 4 constitute a combination group, for example, basic group A. There are cases where both belong to both B and B, and some belong to either one or the other.
[0045] 次にステップ S6では、 nが p_ lと等しいか否かを判定する。この例では、最初は、 n = 1、 pが 3で、 p_ 1 = 2となり、等しくないので、ステップ S7で n = 2とし、ステップ S2 へ戻る。  Next, in step S6, it is determined whether n is equal to p_l. In this example, initially, n = 1, p is 3, and p_1 = 2, which is not equal. Therefore, n = 2 is set in step S7, and the process returns to step S2.
このステップ S2では、例えば、前述のステップ S5で、基本グループ Aと Bが排出グ ループに決定されていたとすると、基本グループ Aと Bを除いた 5個の基本グループ C〜Gから 2個組合せてなる、 10 (= C )組の組合せ用グループを求める。また、 1個 の基本グループ (例えば A)のみが排出グループに決定されていたとすると、基本グ ループ Aを除いた 6個の基本グループ B〜Gから 2個組合せてなる、 15 (= C )組の In this step S2, for example, if basic groups A and B have been determined as emission groups in step S5 described above, two basic groups C to G excluding basic groups A and B are combined. The combination group of 10 (= C) is obtained. Also 1 piece If only one basic group (for example, A) is determined to be an emission group, 15 (= C) pairs consisting of two basic groups B to G, excluding basic group A, are combined.
6 2 組合せ用グノレープを求める。  6 2 Find the combination gnolepe.
続いて、ステップ S3〜S5を前述と同様にして行レ、、 2番目(n = 2)の排出グノレープ を決定する。次のステップ S6では、 n= 2、 pが 3で、 p— 1 = 2となり、 n力 ¾一 1と等しく なるので、ステップ S8へ進む。  Next, steps S3 to S5 are performed in the same manner as described above, and the second (n = 2) discharge gnole is determined. In the next step S6, n = 2, p is 3, p−1 = 2, and the n force is equal to −1−1, so the process proceeds to step S8.
ステップ S8では、例えば、基本グループ Aが 1番目の排出グループに決定され、基 本グノレープ Bと Cが 2番目の排出グノレープに決定されていたとすると、排出グループ に属していない基本グループ D〜G内の計量ホッパ 4の計量値に基づいて組合せ演 算を行い、最適組合せの計量ホッパ 4を選択するとともに、その最適組合せの計量ホ ッパ 4の計量値の合計を最適組合せ重量とする。そして、最適組合せの計量ホッパ 4 を含む基本グループを 3番目の排出グループに決定する。以上の処理により、 3個の 排出グノレープが決定される。  In step S8, for example, if basic group A is determined to be the first emission group and basic gnoleops B and C are determined to be the second emission gnole, within basic groups D to G that do not belong to the emission group The combination operation is performed based on the measurement value of the weighing hopper 4, and the optimum combination weighing hopper 4 is selected, and the total of the measurement values of the weighing hopper 4 of the optimum combination is set as the optimum combination weight. Then, the basic group including the optimal combination of weighing hoppers 4 is determined as the third discharge group. Through the above process, three discharge gnoles are determined.
また次に、基本グループが 3個ある場合 (集合シュートおよび集合ホッパが 3個ある 場合)のステップ S1〜S8の組合せ処理を具体的に説明する。例えば、 A〜Cの 3個 の各基本グループには、 8個ずつの計量ホッパ 4が設けられているものとし、最適組 合せの計量ホッパ 4は 4個選択されるものとし、 1計量サイクル中での排出回数を 2回 とする(p = 2)。また、基本グループが 4個以上の場合、組合せ用グループは基本グ ループを複数個組合せてなるものとするのが好ましいが、この例のように基本グノレー プが 3個の場合は、各組合せ用グループは 1個の基本グノレープからなる(k= l)、す なわち組合せ用グループは基本グループと等しいものとする。  Next, the combination processing of steps S1 to S8 when there are three basic groups (when there are three collective chutes and collective hoppers) will be described in detail. For example, in each of the three basic groups A to C, eight weighing hoppers 4 are provided, and four optimum combination weighing hoppers 4 are selected. The number of discharges at is 2 (p = 2). If there are 4 or more basic groups, the combination group is preferably a combination of multiple basic groups. However, if there are 3 basic groups as in this example, each combination group The group consists of one basic gnole (k = l), that is, the combination group is equal to the basic group.
[0046] まず、ステップ S1で、 nを 1に初期設定する。 [0046] First, in step S1, n is initialized to 1.
[0047] ステップ S2では、最初は、決定済みの排出グループは無いので、全ての各基本グ ノレープ A、 B、 Cを、それぞれ組合せ用グループとする。  [0047] In step S2, since there is no determined emission group at first, all the basic gnoles A, B, and C are set as combination groups.
[0048] ステップ S3では、基本グループ力 S4個の場合と同様にして、最初は、選択済みの組 合せ用グループは無いので、全ての組合せ用グループの中から任意の 1つ、例えば 基本グループ Aからなる組合せ用グループを選択し、その組合せ用グループ内で組 合せ演算を行い、最適組合せの計量ホッパ 4を選択するとともに、最適組合せの計 量ホッパ 4の計量値の合計を最適組合せ重量とする。 [0048] In step S3, as in the case of S4 basic group forces, there is no selected combination group at first, so any one of all the combination groups, for example, basic group A, is selected. The combination group is selected, the combination calculation is performed within the combination group, the optimum combination weighing hopper 4 is selected, and the optimum combination is calculated. The sum of the weighing values of the quantity hopper 4 is the optimum combined weight.
[0049] ステップ S4により、ステップ S3が繰り返し行われる。この例の場合、基本グループ A[0049] Step S3 is repeatedly performed by step S4. In this example, base group A
、 B、 Cの各々力 なる組合せ用グループ内で、最適組合せの計量ホッパ 4及び最適 組合せ重量が求められる。 The optimum combination weighing hopper 4 and the optimum combination weight are determined within the combination group consisting of, B and C.
[0050] ステップ S5では、全ての組合せ用グループ (A、 B、 C)の中で、最適組合せ重量が 最も目標重量に近い組合せ用グループを、 1番目(n= l)の排出グループに決定す る。この排出グループ内の最適組合せの計量ホッパ 4は、 C X C = 210通りの組 [0050] In step S5, among all the combination groups (A, B, C), the combination group whose optimum combination weight is closest to the target weight is determined as the first (n = l) discharge group. The The optimal combination of weighing hoppers 4 in this discharge group has C X C = 210 combinations.
3 1 8 4  3 1 8 4
合せの中から選択されたものである。  It is selected from the set.
[0051] 次にステップ S6では、 n= l、 pが 2で、 p— 1 = 1となり、 nが p_ 1と等しくなるので、 ステップ S8へ進む。  Next, in step S6, n = 1, p is 2, p−1 = 1, and n is equal to p_1, so the process proceeds to step S8.
[0052] ステップ S8では、例えば、基本グループ Aが 1番目の排出グループに決定されて いたとすると、排出グループに属していない基本グループ Bと C内の計量ホッパ 4の 計量値に基づいて組合せ演算を行い、最適組合せの計量ホッパ 4を選択するととも に、その最適組合せの計量ホッパ 4の計量値の合計を最適組合せ重量とする。そし て、最適組合せの計量ホッパ 4を含む基本グループを 2番目の排出グループに決定 する。以上の処理により、 2個の排出グループが決定される。  [0052] In step S8, for example, if basic group A is determined to be the first discharge group, the combination calculation is performed based on the measurement values of basic groups B and C that do not belong to the discharge group. And select the weighing hopper 4 of the optimum combination and set the total weight of the weighing hopper 4 of the optimum combination as the optimum combination weight. Then, the basic group including the optimal combination of weighing hoppers 4 is determined as the second discharge group. Through the above process, two emission groups are determined.
なお、上記説明した図 3に示す処理では、ステップ S5で、全ての組合せ用グルー プの中で、最適組合せ重量が最も目標重量に近い組合せ用グループを求め、その 組合せ用グノレープ内で最適組合せの計量ホッパ 4を含む基本グノレープを、排出ダル ープに決定するようにした力 最適組合せ重量が最も目標重量に近い組合せ用ダル ープをそのまま排出グノレープに決定するようにしてもよい(この場合、組合せ精度が 若干低下する可能性はある)。また、ステップ S8で、 p_ l個の排出グループに属して いない全ての基本グループ内の計量ホッパ 4の計量値に基づいて組合せ演算を行 レ、、最適組合せの計量ホッパ 4を含む基本グループを p番目の排出グループに決定 するようにしたが、 p_ l個の排出グノレープに属していない全ての基本グループを p番 目の排出グループに決定するようにしてもよい(但し、組合せ演算を行うことに変わり はない)。これらの場合、ステップ S10で、順次被計量物を排出する各排出グノレープ では、排出グループ内における最適組合せの計量ホッパ 4を含む基本グループに対 応する集合ホッパのみを開閉して被計量物を排出するようにすればよい。 In the process shown in FIG. 3 described above, in step S5, a combination group whose optimum combination weight is closest to the target weight is obtained from all the combination groups, and the optimum combination weight is determined in the combination gnole. Force to determine the basic gnole including the weighing hopper 4 as the discharge drape The combination dull whose optimum combination weight is closest to the target weight may be determined as the discharge gnole as it is (in this case, There is a possibility that the combination accuracy will be slightly reduced). In step S8, the combination calculation is performed based on the weighing values of the weighing hoppers 4 in all the basic groups not belonging to the p_ l discharge groups, and the basic group including the weighing hopper 4 of the optimum combination is p. Although it is determined to be the second emission group, all the basic groups that do not belong to the p_ l emission gnolepe may be determined to be the pth emission group (however, the combination calculation is performed). No change). In these cases, each discharge gnole that sequentially discharges the objects to be weighed in step S10 is applied to the basic group including the weighing hopper 4 of the optimum combination in the discharge group. It is only necessary to open and close only the corresponding collecting hopper to discharge the object to be weighed.
また、ステップ S2が繰り返されるときに、組合せ用グループを構成する基本グルー プの個数の kを変更するようにしてもよい。例えば初回のステップ S2の場合よりも 2回 目のステップ S2の場合での組合せ用グループを構成する基本グループの個数を多 くするようにしてもよい。  Further, when step S2 is repeated, the number k of basic groups constituting the combination group may be changed. For example, the number of basic groups constituting the combination group in the second step S2 may be made larger than in the first step S2.
図 4は、前述の組合せ処理により 2個の排出グループが決定される場合の組合せ 秤の動作のタイミングチャートである。この図 4では、 1つの計量サイクルとその計量サ イクノレ中での集合ホッパの排出タイミングしか示していなレ、が、このような動作が連続 して繰り返される。図 4における第 1、第 2の排出グノレープは、それぞれ前述の組合せ 処理における 1番目、 2番目の排出グループである。あるいは、例えば、全ての基本 グノレープ (あるいは集合ホツバ)に排出の優先順を示す番号(1、 2、 3、 · · ·)を付与し ておき、組合せ処理における 1番目、 2番目の各排出グループに属する基本グルー プのうち最も小さい番号の基本グループの番号同士を比較し、番号の小さい方の基 本グノレープを含む排出グノレープを第 1の排出グループとし、番号の大きい方の基本 グノレープを含む排出グノレープを第 2の排出グループとしてもよい。  FIG. 4 is a timing chart of the operation of the combination weigher when two discharge groups are determined by the combination process described above. In FIG. 4, only one collection cycle and the discharge timing of the collecting hopper during the measurement cycle are shown, but this operation is repeated continuously. The first and second emission gnoles in Fig. 4 are the first and second emission groups, respectively, in the combination process described above. Or, for example, numbers (1, 2, 3,...) Indicating the priority order of emissions are assigned to all basic gnoles (or collective hotspots), and the first and second emission groups in the combination process are assigned. Compare the numbers of the basic groups with the lowest number among the basic groups belonging to, and set the emission gnole that includes the basic gnole with the lower number as the first emission group, and the emission that includes the basic gnole with the higher number Gnolepe may be the second emission group.
[0053] この組合せ秤における 1計量サイクルは、排出時間 tlと安定時間 t2と組合せ時間 t 3とからなる。排出時間 tlは、集合ホッパへ被計量物を供給するために動作させる最 適組合せの計量ホッパ 4のゲート開閉、およびその計量ホッパ 4に対して被計量物を 供給するために動作させる供給ホッパのゲート開閉に要する時間である。安定時間 t 2は、計量ホッパ 4に取り付けられている重量センサ 41の安定時間である。組合せ時 間 t3は、組合せ処理を行う時間であり、この時間 t3に次の計量サイクルの排出時間 までの待ち時間が含まれることもある。  [0053] One weighing cycle in this combination weigher includes a discharge time tl, a stabilization time t2, and a combination time t3. The discharge time tl is the opening / closing of the optimum combination of weighing hoppers 4 operated to supply the objects to be weighed to the collecting hopper and the supply hoppers operated to supply the objects to be weighed to the weighing hoppers 4 This is the time required to open and close the gate. The stabilization time t 2 is the stabilization time of the weight sensor 41 attached to the weighing hopper 4. The combination time t3 is a time for performing the combination process, and this time t3 may include a waiting time until the discharge time of the next weighing cycle.
[0054] 図 4の場合、包装機から出力されるタイミング aの投入指令信号により第 1の排出グ ループに対応する集合ホツバのゲートを開き、包装機へ被計量物の排出が行われ、 タイミング bの投入指令信号により第 2の排出グノレープに対応する集合ホツバのグー トを開き、包装機へ排出が行われる。このように各排出グループを予め決定された順 に T/2時間(Tは 1計量サイクルの時間)ずつずらして動作させることにより、全体が 1つの組合せ秤として動作する場合と比べて 2倍の速度で排出が可能となり、高速に 動作する包装機に対応できる。また、計量ホッパ 4から排出された被計量物はそれぞ れの集合シュート(6A〜6D)を通って一旦それぞれの集合ホッパ(7A〜7D)に溜め られ、被計量物が充分に固まった状態で各集合ホッパから排出されるので、各排出 グノレープに対応する集合ホツバから排出される 1回の排出時間が短くなり、包装機で の被計量物の嚙み込みの発生も防止できる。 [0054] In the case of Fig. 4, the gate of the assembly hot bar corresponding to the first discharge group is opened by the input command signal at timing a output from the packaging machine, and the objects to be weighed are discharged to the packaging machine. In response to the input command signal in b, the goot of the collecting hot bar corresponding to the second discharge gnole is opened and discharged to the packaging machine. In this way, each discharge group is operated by shifting T / 2 hours (T is the time of one weighing cycle) in a predetermined order, so that the total is doubled compared to the case of operating as a single combination weigher. Discharge is possible at high speed It can be used with an operating packaging machine. In addition, the objects to be weighed discharged from the weighing hopper 4 are temporarily stored in the respective collecting hoppers (7A to 7D) through the respective collecting chutes (6A to 6D), and the objects to be weighed are sufficiently solidified. In this case, the discharge time from each collecting hopper corresponding to each discharge gnole is shortened, and the occurrence of stagnation of objects to be weighed in the packaging machine can be prevented.
図 5は、前述の組合せ処理により 3個の排出グループが決定される場合の組合せ 秤の動作のタイミングチャートである。この図 5では、図 4と同様、 1つの計量サイクル とその計量サイクル中での集合ホッパの排出タイミングしか示してレ、なレ、が、このよう な動作が連続して繰り返される。図 5における第 1、第 2、第 3の排出グノレープは、そ れぞれ前述の組合せ処理における 1番目、 2番目、 3番目の排出グループである。あ るいは、例えば、全ての基本グループ (あるいは集合ホッパ)に排出の優先順を示す 番号(1、 2、 3、 · · ·)を付与しておき、組合せ処理における 1番目、 2番目、 3番目の 各排出グループに属する基本グループのうち最も小さい番号の基本グループの番 号同士を比較し、番号力 番小さい基本グループを含む排出グループを第 1の排出 グノレープとし、番号が 2番目に小さい基本グループを含む排出グループを第 2の排 出グノレープとし、番号が 3番目に小さい基本グループを含む排出グループを第 3の 排出グノレープとしてもよい。  FIG. 5 is a timing chart of the operation of the combination weigher when three discharge groups are determined by the combination process described above. In FIG. 5, like FIG. 4, only one weighing cycle and the discharge timing of the collecting hopper during the weighing cycle are shown, and this operation is repeated continuously. The first, second, and third emission gnoles in Fig. 5 are the first, second, and third emission groups in the combination process described above, respectively. Or, for example, all basic groups (or collective hoppers) are assigned numbers (1, 2, 3,...) That indicate the priority of discharge, and the first, second, 3 in the combination process. Compare the numbers of the basic groups with the lowest number among the basic groups belonging to each of the second emission groups, and set the emission group including the basic group with the lowest number power as the first emission gnole, with the second lowest basic number. The emission group including the group may be the second emission gnole, and the emission group including the basic group with the third lowest number may be the third emission gnole.
この組合せ秤における 1計量サイクルは、図 4の場合と同様、排出時間 tlと安定時 間 t2と組合せ時間 t3とからなる。  One weighing cycle in this combination weigher consists of a discharge time tl, a stabilization time t2, and a combination time t3, as in the case of FIG.
図 5の場合、包装機から出力されるタイミング aの投入指令信号により第 1の排出グ ループに対応する集合ホッパのゲートを開き、包装機へ被計量物の排出が行われ、 タイミング bの投入指令信号により第 2の排出グノレープに対応する集合ホツバのグー トを開き、包装機へ排出が行われ、タイミング cの投入指令信号により第 3の排出ダル ープに対応する集合ホツバのゲートを開き、包装機へ排出が行われる。このように各 排出グノレープを予め決定された順に T/3時間 (Tは 1計量サイクルの時間)ずつず らして動作させることにより、全体が 1つの組合せ秤として動作する場合と比べて 3倍 の速度で排出が可能となり、高速に動作する包装機に対応できる。また、図 4の場合 と同様、計量ホッパ 4から排出された被計量物は一旦それぞれの集合ホッパに溜めら れ、被計量物が充分に固まった状態で各集合ホッパから排出されるので、各排出グ ループに対応する集合ホッパから排出される 1回の排出時間が短くなり、包装機での 被計量物の嚙み込みの発生も防止できる。 In the case of Fig. 5, the gate of the collecting hopper corresponding to the first discharge group is opened by the input command signal at timing a output from the packaging machine, the material to be weighed is discharged to the packaging machine, and the input at timing b The collective hot bar gate corresponding to the second discharge gnole is opened by the command signal and discharged to the packaging machine, and the collective hot bar gate corresponding to the third discharge dulp is opened by the input command signal at timing c. The product is discharged to the packaging machine. In this way, each discharge gnole is operated by shifting T / 3 time (T is the time of one weighing cycle) in the order determined in advance, so that the total is three times that of a single combination weigher. It can be discharged at a high speed and can be used for packaging machines that operate at high speed. Also, as in the case of Fig. 4, the objects to be weighed discharged from the weighing hopper 4 are once stored in the respective collecting hoppers. As the objects to be weighed are discharged from each collecting hopper in a sufficiently solid state, the discharge time for one discharge from the collecting hopper corresponding to each discharging group is shortened, and the objects to be weighed in the packaging machine are shortened. Occurrence of stagnation can be prevented.
なお、本実施の形態では、集合シュート及び集合ホッパの個数、すなわち基本ダル ープの個数が 3個以上の構成であればよぐ 4個以上の構成とすることがより好ましい 。その理由は、 4個以上の場合には、組合せ処理における組合せ用グループを、基 本グノレープを複数個組合せてなるものとすることができ、基本グループ内の計量ホッ パ数が同じであれば、ステップ S3の組合せ演算時の組合せ数を多くできるからであ る。  In the present embodiment, it is more preferable that the number of collective chutes and collective hoppers, that is, the number of basic loops is 3 or more. The reason for this is that when there are four or more, the combination group in the combination process can be a combination of a plurality of basic gnoles, and if the number of weighing hoppers in the basic group is the same, This is because the number of combinations during the combination calculation in step S3 can be increased.
[0056] (実施の形態 2)  [Embodiment 2]
本実施の形態の組合せ秤の構成例は、例えば図 1 (a)、 (b)に示す実施の形態 1と 同様であり、その説明を省略する。  The configuration example of the combination weigher of the present embodiment is the same as that of the first embodiment shown in FIGS. 1A and 1B, for example, and the description thereof is omitted.
次に、本実施の形態の組合せ秤の動作を説明する。実施の形態 1との主な相違は 、制御部 21の行う組合せ処理の処理方法である。  Next, the operation of the combination weigher of this embodiment will be described. The main difference from the first embodiment is the processing method of the combination processing performed by the control unit 21.
図 6は、本実施の形態の組合せ秤の動作を示すフローチャートであり、 1計量サイク ル中において被計量物を外部(例えば包装機)へ排出する回数を p回とする(pは複 数)。また、組合せ処理は、ステップ S20〜S28の処理である。なお、制御部 21は、メ モリを内蔵しており、組合せ処理で求める必要な情報 (後出の組合せ用グノレープ、排 出候補グノレープ及び排出グループがどの基本グループの計量ホッパで構成されて いるかの情報、最適組合せの計量ホッパを示す情報及び最適組合せ重量の情報、 ステップ S27で求める差及び差の合計の情報等)をメモリに記憶する。  FIG. 6 is a flowchart showing the operation of the combination weigher according to the present embodiment. In one weighing cycle, the number of times the object to be weighed is discharged to the outside (for example, a packaging machine) is p times (p is multiple). . The combination process is a process of steps S20 to S28. The control unit 21 has a built-in memory, and the necessary information to be obtained in the combination process (whether the combination gnole, the evacuation candidate gnole and the evacuation group described later are composed of weighing hoppers in which basic group is configured). Information, information indicating the weighing hopper of the optimum combination, information on the optimum combination weight, information obtained in step S27, and information on the sum of the differences) are stored in the memory.
[0057] 繰り返しステップ S20は、以下のステップ S21〜ステップ S27の処理を繰り返すこと で、全ての排出候補グループセットを求めるとともに、各排出候補グループセットにつ レ、て後述する差の合計を求める。  In the repetition step S20, all the emission candidate group sets are obtained by repeating the processing of the following steps S21 to S27, and the sum of differences described later is obtained for each emission candidate group set.
[0058] まず、ステップ S21で、 nを 1に初期設定する。この nは、後述のステップ S23の処理 により求められる排出候補グループの個数を示す。  First, in step S21, n is initially set to 1. This n indicates the number of emission candidate groups obtained by the process of step S23 described later.
[0059] ステップ S22では、繰り返しステップ S20 (S21〜S27)が複数回数繰り返されるうち 同一回数目の繰り返しステップ S20内において決定済みの排出候補グループに属 していない基本グループを k個組み合わせてなる任意の 1つの組合せ用グループを 求める。最初は、決定済みの排出候補グループは無いので、全ての基本グループか ら k個の基本グループを組合せてなる 1つのグループを、組合せ用グループとする。 [0059] In step S22, the repetition step S20 (S21 to S27) is repeated a plurality of times, and it belongs to the emission candidate group determined in the same number of repetition steps S20. Find one combination group consisting of k basic groups that have not been combined. Initially, there are no determined emission candidate groups, so one group that is a combination of k basic groups from all the basic groups is designated as a combination group.
[0060] ステップ S23では、ステップ S22で求めた組合せ用グループ内の計量ホッパ 4の計 量値に基づいて組合せ演算を行い、計量値の合計が目標重量に対して許容範囲内 であり、かつ目標重量との差が最も小さい組合せ (最適組合せ)の計量ホッパ 4を選 択するとともに、その最適組合せの計量ホッパ 4の計量値の合計を最適組合せ重量 とする。そして、最適組合せの計量ホッパ 4を含む基本グループを n番目の排出候補 グノレープに決定する。 [0060] In step S23, a combination calculation is performed based on the measurement values of the weighing hoppers 4 in the combination group obtained in step S22, and the total of the measurement values is within an allowable range with respect to the target weight. The weighing hopper 4 of the combination with the smallest difference from the weight (optimal combination) is selected, and the sum of the weighing values of the weighing hopper 4 of the optimum combination is the optimum combined weight. Then, the basic group including the optimal combination of weighing hoppers 4 is determined as the nth discharge candidate gnole.
[0061] 次にステップ S24では、 nが p_ lと等しいか否かを判定し、等しくなければステップ S25で nを 1増カロして、ステップ S22からの処理を繰り返し、等しければステップ S26 へ進む。すなわち、 p_ l個の排出候補グループを決定するまで、ステップ S22〜S2 3の処理を繰り返す。  [0061] Next, in step S24, it is determined whether or not n is equal to p_l. If not equal, n is increased by 1 in step S25, and the process from step S22 is repeated. If equal, the process proceeds to step S26. . That is, the processes of steps S22 to S23 are repeated until p_l emission candidate groups are determined.
[0062] ステップ S26では、上記の p— 1個の排出候補グループに属していない全ての基本 グループ内の計量ホッパ 4の計量値に基づいて組合せ演算を行い、計量値の合計 が目標重量に対して許容範囲内であり、かつ目標重量との差が最も小さい組合せ( 最適組合せ)の計量ホッパ 4を選択するとともに、その最適組合せの計量ホッパ 4の 計量値の合計を最適組合せ重量とする。そして、最適組合せの計量ホッパ 4を含む 基本グループを p番目の排出候補グノレープに決定するとともに、以上で決定された p 個の排出候補グループを排出候補グループセットとする。  [0062] In step S26, a combination calculation is performed based on the measured values of the weighing hoppers 4 in all the basic groups not belonging to the above-mentioned p-one discharge candidate group, and the total of the measured values is compared with the target weight. The weighing hopper 4 with a combination that is within the allowable range and has the smallest difference from the target weight (optimal combination) is selected, and the sum of the weighing values of the weighing hopper 4 of the optimum combination is the optimum combined weight. Then, the basic group including the optimum combination of the weighing hoppers 4 is determined as the pth emission candidate gnole, and the p emission candidate groups determined above are set as the emission candidate group set.
[0063] ステップ S27では、排出候補グループセットの各排出候補グループにつレ、て、最適 組合せ重量と目標重量との差を求め、さらに各排出候補グループについて求められ た上記の差の合計を算出する。  [0063] In step S27, the difference between the optimal combination weight and the target weight is calculated for each emission candidate group in the emission candidate group set, and the total of the above differences calculated for each emission candidate group is calculated. To do.
[0064] 以上のステップ S21〜S27の処理を繰り返すことにより(ステップ S20)、全ての排 出候補グノレープセットを求めるとともに、各排出候補グループセットについて上記の 差の合計を求める。  [0064] By repeating the above steps S21 to S27 (step S20), all the emission candidate gnole sets are obtained, and the sum of the above differences is obtained for each emission candidate group set.
[0065] その後、ステップ S28では、全ての排出候補グループセットのうち、ステップ S27で 求めた差の合計が最小となる 1つの排出候補グノレープセットを選択し、その排出候補 グノレープセットの p個の排出候補グループをそれぞれ排出グノレープに決定する。 以上のステップ S20〜S28の組合せ処理により、 p個の排出グループが決定される 次にステップ S29では、 p個全ての排出グノレープにおける最適組合せの計量ホッパ 4のゲートを同時に開き、被計量物を集合ホツバへ供給する。 [0065] After that, in step S28, one emission candidate gnolep set that minimizes the sum of the differences obtained in step S27 is selected from all emission candidate group sets, and the emission candidates are selected. Each of the p emission candidate groups in the gnolepe set is determined as an emission gnolepe. P discharge groups are determined by the combination processing of steps S20 to S28. Next, in step S29, the gates of the weighing hoppers 4 of the optimum combination in all p discharge gnoles are opened simultaneously to collect the objects to be weighed. Supply to Hotsuba.
[0066] 次にステップ S30では、例えば包装機からの投入指令信号を入力する度に、各排 出グノレープに対応する集合ホツバのゲートを開き、被計量物を包装機へ排出する。 すなわち、包装機からの投入指令信号を入力する度に、排出グノレープごとの最適組 合せ重量の被計量物が排出される。 [0066] Next, in step S30, for example, each time an input command signal from the packaging machine is input, the gate of the collecting hot bar corresponding to each discharge gnole is opened, and the objects to be weighed are discharged to the packaging machine. That is, each time an input command signal is input from the packaging machine, an object to be weighed with an optimum combination weight for each discharge gnole is discharged.
なお、ステップ S27で求める各排出候補グノレープの最適組合せ重量と目標重量と の差について説明しておく。組合せ演算を行うことにより、計量ホッパ 4の計量値の合 計が目標重量に対して許容範囲内であり、かつ目標重量との差が最も小さい組合せ の計量ホッパ 4を最適組合せの計量ホッパ 4として選択する力 上記の許容範囲が目 標重量以上の範囲である場合は、最適組合せ重量から目標重量を減算した値を上 記の差として求めればよい。また、 目標重量より小さい値を許容範囲の下限値とし、 目標重量より大きレ、値を許容範囲の上限値とする場合にぉレ、ては、最適組合せ重量 が目標重量より大きい値であれば、最適組合せ重量から目標重量を減算した値を上 記の差とし、最適組合せ重量が目標重量より小さい値であれば、 目標重量から最適 組合せ重量を減算した値を上記の差として求めればよい。要するにいずれの場合も 、最適組合せ重量から目標重量を減算した値の絶対値 (0または正の値)を上記の差 として求めればよい。  The difference between the optimum combined weight of each emission candidate gnole determined in step S27 and the target weight will be described. By performing the combination calculation, the weighing hopper 4 with the combination in which the total weight value of the weighing hopper 4 is within the allowable range with respect to the target weight and the difference from the target weight is the smallest is set as the weighing hopper 4 with the optimum combination. Force to be selected If the above-mentioned permissible range is equal to or greater than the target weight, the value obtained by subtracting the target weight from the optimum combination weight may be obtained as the difference. In addition, if the value smaller than the target weight is set as the lower limit value of the allowable range and larger than the target weight, and the value is set as the upper limit value of the allowable range, the optimal combination weight is larger than the target weight. The value obtained by subtracting the target weight from the optimum combination weight is set as the above difference, and if the optimum combination weight is smaller than the target weight, the value obtained by subtracting the optimum combination weight from the target weight may be obtained as the above difference. In short, in any case, an absolute value (0 or a positive value) obtained by subtracting the target weight from the optimum combination weight may be obtained as the above difference.
以上の処理、特にステップ S20〜S28の組合せ処理を、図 1 (a)、(b)の構成に対 して適用した場合についてより具体的に説明する。例えば、 A〜Dの 4個の各基本グ ループには、 6個ずつの計量ホッパ 4が設けられているものとし、組合せ用グループ は基本グループを 2個組合せてなるものとし (k= 2)、最適組合せの計量ホッパ 4は 4 個選択されるものとし、 1計量サイクル中での排出回数を 2回とする(p = 2)。  The case where the above processing, particularly the combination processing of steps S20 to S28, is applied to the configuration of FIGS. 1 (a) and (b) will be described more specifically. For example, each of the four basic groups A to D is provided with six weighing hoppers 4 and the combination group is composed of two basic groups (k = 2). Suppose that 4 weighing hoppers 4 of the optimum combination are selected, and the number of discharges in one weighing cycle is 2 (p = 2).
[0067] まず、繰り返しステップ S20内のステップ S21で、 nを 1に初期設定する。 [0067] First, n is initially set to 1 in step S21 in repetitive step S20.
[0068] ステップ S22では、最初は、決定済みの排出候補グループは無いので、全ての基 本グループ A〜Dから 2個組合せてなる、例えば基本グループ Aと Bを組合せた 1つ の組合せ用グループを求める。 [0068] In step S22, since there is no determined emission candidate group at the beginning, all the groups are determined. One combination group is obtained by combining two of these groups A to D, for example, combining basic groups A and B.
ステップ S23では、例えば基本グループ Aと Bを組合せた組合せ用グループ内で 組合せ演算を行い、最適組合せの計量ホッパ 4を 4個選択するとともに、その最適組 合せの計量ホッパ 4の計量値の合計を最適組合せ重量とする。そして、最適組合せ の計量ホッパ 4を含む基本グループを 1番目の排出候補グループに決定する。この 例では、最適組合せの計量ホッパ 4として 4個選択され、各基本グループには 6個の 計量ホッパ 4が設けられているので、最適組合せの計量ホッパ 4が基本グループ Aと Bの両方に属する場合といずれか一方のみに属する場合とがある。最適組合せの計 量ホッパ 4が基本グループ Aと Bの両方に属していれば、基本グループ Aと Bが排出 候補グループとなり、基本グループ Aのみに属していれば、基本グループ Aのみが 排出候補グループとなり、基本グループ Bのみに属していれば、基本グループ Bのみ が排出候補グループとなる。  In step S23, for example, combination calculation is performed within the combination group in which the basic groups A and B are combined, and four weighing hoppers 4 of the optimum combination are selected, and the total of the weighing values of the weighing hopper 4 of the optimum combination are calculated. Use the optimum combination weight. Then, the basic group including the optimal combination of weighing hoppers 4 is determined as the first discharge candidate group. In this example, four weighing hoppers 4 of the optimum combination are selected, and six weighing hoppers 4 are provided in each basic group. Therefore, the weighing hopper 4 of the optimum combination belongs to both basic groups A and B. Cases and cases belonging to only one of them. If the optimal combination weighing hopper 4 belongs to both basic groups A and B, basic groups A and B become emission candidate groups, and if it belongs only to basic group A, only basic group A is the emission candidate group. Thus, if it belongs only to basic group B, only basic group B becomes an emission candidate group.
次にステップ S24では、 nが p—1と等しいか否かを判定する。この例では、 n= l、 p 力 ¾で、 p— 1 = 1となり、等しくなるのでステップ S26へ進む。  Next, in step S24, it is determined whether n is equal to p−1. In this example, when n = l and p force ¾, p−1 = 1, which is equal to each other.
ステップ S26では、例えば、ステップ S23で、基本グループ Aと Bが排出候補グルー プに決定されていたとすると、排出候補グループに属していない基本グループ Cと D 内の計量ホッパ 4の計量値に基づいて組合せ演算を行い、最適組合せの計量ホッパ 4を 4個選択するとともに、その最適組合せの計量ホッパ 4の計量値の合計を最適組 合せ重量とする。そして、最適組合せの計量ホッパ 4を含む基本グループを 2番目の 排出候補グノレープに決定するとともに、以上で決定された 2個の排出候補グループ を排出候補グループセットとする。また、ステップ S23で、 1個の基本グループ Aが排 出候補グノレープに決定されていたとすると、排出候補グループに属していなレ、 3個の 基本グノレープ Bと Cと D内の計量ホッパ 4の計量値に基づいて組合せ演算を行レ、、最 適組合せの計量ホッパ 4を 4個選択するとともに、その最適組合せの計量ホッパ 4の 計量値の合計を最適組合せ重量とする。そして、最適組合せの計量ホッパ 4を含む 基本グループを 2番目の排出候補グループに決定するとともに、以上で決定された 2 個の排出候補グループを排出候補グループセットとする。 ステップ S27では、排出候補グループセットの 2個の排出候補グノレープの各々につ いて、最適組合せ重量と目標重量との差を求め、さらに各排出候補グループについ て求められた上記の差の合計を算出する。 In step S26, for example, if basic groups A and B are determined as emission candidate groups in step S23, based on the measurement values of weighing hoppers 4 in basic groups C and D that do not belong to the emission candidate groups. Perform combination calculation and select 4 weighing hoppers 4 of the optimal combination, and the total of the weighing values of the weighing hopper 4 of the optimal combination is the optimum combined weight. Then, the basic group including the optimal combination of weighing hoppers 4 is determined as the second emission candidate gnole, and the two emission candidate groups determined above are set as the emission candidate group set. Also, in step S23, if one basic group A has been determined to be an emission candidate gnole, the measurement of the weighing hopper 4 in the three basic gnolees B, C, and D will not belong to the emission candidate group. The combination calculation is performed based on the values, and four weighing hoppers 4 of the optimum combination are selected, and the total of the weighing values of the weighing hopper 4 of the optimum combination is set as the optimum combination weight. Then, the basic group including the optimal combination of weighing hoppers 4 is determined as the second emission candidate group, and the two emission candidate groups determined above are set as the emission candidate group set. In step S27, for each of the two emission candidate gnoles in the emission candidate group set, obtain the difference between the optimal combination weight and the target weight, and then calculate the sum of the above differences obtained for each emission candidate group. To do.
[0070] さらに、上記のステップ S21〜S27の繰り返しステップ S20の処理を繰り返す。例え ば、次に、ステップ S22で基本グループ Aと Cを組合せ用グループとする場合につい て上記処理を繰り返し、さらに基本グノレープ Aと Dを組合せ用グノレープとする場合に ついて上記処理を繰り返し、とレ、うように、基本グループ Bと C、基本グループ Bと D、 基本グノレープ Cと Dをそれぞれ組合せ用グループとする場合についても同様に上記 処理を繰り返す。これにより、全ての排出候補グノレープセットが求められるとともに、 各排出候補グノレープセットについて上記の差の合計が求められる。  [0070] Further, the processing of the repetition step S20 of the above steps S21 to S27 is repeated. For example, in the next step S22, the above process is repeated when the basic groups A and C are used as the combination group, and the above process is repeated when the basic group A and D are used as the combination group. In the same manner, the above processing is repeated in the case where the basic groups B and C, the basic groups B and D, and the basic gnole C and D are used as the combination groups. As a result, all emission candidate gnolepe sets are obtained, and the sum of the above differences is obtained for each emission candidate gnolepe set.
[0071] その後、ステップ S28では、全ての排出候補グループセットのうち、ステップ S27で 求めた差の合計が最小となる 1つの排出候補グノレープセットを選択し、その排出候補 グノレープセットの 2個の排出候補グノレープをそれぞれ排出グループに決定する。 次に、基本グループが 7個ある場合 (集合シュートおよび集合ホッパが 7個ある場合 )のステップ S20〜S28の組合せ処理を具体的に説明する。例えば、 A〜Gの 7個の 各基本グループには、 4個ずつの計量ホッパ 4が設けられているものとし、組合せ用 グノレープは基本グループを 2個組合せてなるものとし (k= 2)、最適組合せの計量ホ ッパ 4は 4個選択されるものとし、 1計量サイクル中での排出回数を 3回とする(p = 3) まず、 1回目の繰り返しステップ S20において、ステップ S21で、 nを 1に初期設定す る。  [0071] After that, in step S28, one emission candidate gnole set that minimizes the sum of the differences obtained in step S27 is selected from all emission candidate group sets, and the two emission candidates in the emission candidate gnole set are selected. Candidate gnorapes are determined for each emission group. Next, the combination processing of steps S20 to S28 when there are seven basic groups (when there are seven collective chutes and collective hoppers) will be specifically described. For example, it is assumed that each of the seven basic groups A to G is provided with four weighing hoppers 4, and the combination gnole is a combination of two basic groups (k = 2). It is assumed that four optimally combined weighing hoppers 4 are selected, and the number of discharges in one weighing cycle is three (p = 3). First, in the first repeat step S20, in step S21, n Initialize to 1.
[0072] ステップ S22では、最初は、決定済みの排出候補グループは無いので、全ての基 本グループ A〜Gから 2個組合せてなる、例えば基本グループ Aと Bを組合せた 1つ の組合せ用グループを求める。  [0072] In step S22, since there is no determined emission candidate group at first, two combinations from all the basic groups A to G are combined. For example, one combination group in which basic groups A and B are combined Ask for.
[0073] ステップ S23では、基本グループ Aと Bを組合せた組合せ用グループ内で組合せ 演算を行い、最適組合せの計量ホッパ 4を 4個選択するとともに、その最適組合せの 計量ホッパ 4の計量値の合計を最適組合せ重量とする。そして、最適組合せの計量 ホッパ 4を含む基本グループを 1番目の排出候補グループに決定する。ここで、各基 本グループには 4個の計量ホッパ 4が設けられているので、 4個選択されている最適 組合せの計量ホッパ 4は、組合せ用グループを構成してレ、る基本グノレープ Aと Bの両 方に属する場合といずれか一方のみに属する場合とがある。 [0073] In step S23, combination calculation is performed within the combination group in which the basic groups A and B are combined, and four weighing hoppers 4 of the optimum combination are selected, and the total of the weighing values of the weighing hopper 4 of the optimum combination are selected. Is the optimum combination weight. Then, the basic group including the optimal combination weighing hopper 4 is determined as the first discharge candidate group. Where each group There are four weighing hoppers 4 in this group, so the four optimally selected weighing hoppers 4 form a combination group and are connected to both the basic gnole A and B. There are cases where it belongs and cases where it belongs to only one of them.
[0074] 次にステップ S24では、 nが p_ lと等しいか否かを判定する。この例では、最初は、 n= l、 p力 S3で、 p_ 1 = 2となり、等しくなレヽので、ステップ S25で n= 2とし、ステップ S 22へ戻る。 Next, in step S24, it is determined whether n is equal to p_l. In this example, at first, n = 1, p force S3, and p_1 = 2, so that they are equal, so n = 2 in step S25, and the process returns to step S22.
[0075] このステップ S22では、例えば、前述のステップ S23で、基本グループ Aと Bが排出 候補グループに決定されていたとすると、基本グループ Aと Bを除いた 5個の基本グ ループ C〜Gから 2個組合せてなる、 10 (= C )通りのグループのうちの 1つを組合  [0075] In this step S22, for example, if the basic groups A and B are determined as emission candidate groups in the above-mentioned step S23, the five basic groups C to G excluding the basic groups A and B are used. Combining one of 10 (= C) groups of two
5 2  5 2
せ用グループとする。また、 1個の基本グループ (例えば A)のみが排出候補グルー プに決定されていたとすると、基本グループ Aを除いた 6個の基本グループ B〜Gか ら 2個組合せてなる、 15 (= C )通りのグループのうちの 1つを組合せ用グループと  Let's make it a seduction group. If only one basic group (for example, A) has been determined as an emission candidate group, two basic groups B to G, excluding basic group A, are combined and 15 (= C ) One of the street groups
6 2  6 2
する。  To do.
[0076] 続いて、ステップ S23を前述と同様にして行レ、、 2番目(n = 2)の排出候補グループ を決定する。次のステップ S24では、 n= 2、 pが 3で、 p— 1 = 2となり、 nが p— 1と等し くなるので、ステップ S26へ進む。  Subsequently, step S23 is performed in the same manner as described above, and the second (n = 2) emission candidate group is determined. In the next step S24, n = 2, p is 3, p−1 = 2, and n is equal to p−1, so the process proceeds to step S26.
ステップ S26では、例えば、基本グループ Aが 1番目の排出候補グノレープに決定さ れ、基本グループ Bと Cが 2番目の排出候補グループに決定されていたとすると、排 出候補グループに属してレ、なレ、基本グループ D〜G内の計量ホッパ 4の計量値に基 づいて組合せ演算を行い、最適組合せの計量ホッパ 4を選択するとともに、その最適 組合せの計量ホッパ 4の計量値の合計を最適組合せ重量とする。そして、最適組合 せの計量ホッパ 4を含む基本グループを 3番目の排出候補グループに決定するととも に、以上で決定された 3個の排出候補グループを排出候補グループセットとする。  In step S26, for example, if basic group A is determined to be the first emission candidate gnole and basic groups B and C are determined to be the second emission candidate group, they belong to the emission candidate group. (B) Perform combination calculation based on the weighing value of the weighing hopper 4 in the basic group D to G, select the weighing hopper 4 of the optimum combination, and combine the weighing value of the weighing hopper 4 of the optimum combination to the optimum combination Weight. The basic group including the optimal combination weighing hopper 4 is determined as the third emission candidate group, and the three emission candidate groups determined above are set as the emission candidate group set.
[0077] ステップ S27では、排出候補グループセットの 3個の排出候補グループの各々につ いて、最適組合せ重量と目標重量との差を求め、さらに各排出候補グループについ て求められた上記の差の合計を算出する。  [0077] In step S27, for each of the three emission candidate groups in the emission candidate group set, the difference between the optimum combination weight and the target weight is obtained, and further, the above difference obtained for each emission candidate group is calculated. Calculate the total.
[0078] さらに、上記のステップ S21〜S27の繰り返しステップ S20の処理を繰り返す。ここ の例では、例えば、 2回目の繰り返しステップ S20において、ステップ S21で n= lとし 、ステップ S22で、上記の 1回目の繰り返しステップ S20と同じ基本グループ Aと Bを 組合せ用グループとし、ステップ S23、 S24、 S25を行った後、 n= 2のときのステップ S22では、 1回目の繰り返しステップ S20 (n= 2のとき)で求めた組合せ用グループと は異なる組合せ用グノレープを求める。例えば、ステップ S23で求める排出候補ダル ープが組合せ用グループと等しくなる場合、 1回目の繰り返しステップ S20において 、 n= lのときのステップ S22で基本グループ Aと B、 n= 2のときのステップ S22で基 本グループ Cと Dを、組合せ用グループとする。 2回目の繰り返しステップ S20におい て、 n= lのときのステップ S22で基本グループ Aと B、 n = 2のときのステップ S22で 基本グループ Cと Eを、組合せ用グループとする。 3回目の繰り返しステップ S20にお いて、 n= lのときのステップ S22で基本グループ Aと B、 n= 2のときのステップ S22 で基本グループ Cと Fを、組合せ用グループとする。 4回目の繰り返しステップ S20に おいて、 n= lのときのステップ S22で基本グループ Aと B、 n= 2のときのステップ S2 2で基本グノレープ Cと Gを、組合せ用グループとする。次に、 5回目〜8回目の繰り返 しステップ S20では、 n= lのときのステップ S22で求める組合せ用グループを基本グ ループ Aと C (5回目〜8回目)とし、 n= 2のときのステップ S22で求める組合せ用グ ループを、基本グループ Bと D (5回目)、基本グループ Bと E (6回目)、基本グループ Bと F (7回目)、基本グループ Bと G (8回目)とするというようにして、さらに繰り返しス テツプ S20を繰り返し行うことにより、全ての排出候補グノレープセットを求めるとともに 、各排出候補グノレープセットについて上記の差の合計を求める。 [0078] Further, the processing of the repeat step S20 of the above steps S21 to S27 is repeated. In this example, for example, in the second repeat step S20, n = l in step S21. In step S22, the same basic groups A and B as in step S20 above are used as a combination group, and after steps S23, S24, and S25 are performed, in step S22 when n = 2, the first time A combination gnole different from the combination group obtained in the repeat step S20 (when n = 2) is obtained. For example, if the emission candidate dull found in step S23 is equal to the combination group, in the first repeat step S20, step S22 when n = l, step S22 when basic group A and B, n = 2 In S22, basic groups C and D are combined. In the second repeated step S20, the basic groups A and B are set as the combination group in step S22 when n = l, and the basic groups C and E are set as step S22 when n = 2. In the third repeat step S20, the basic groups A and B are set as the combination groups in step S22 when n = l, and the basic groups C and F are set as step S22 when n = 2. In the fourth iteration step S20, the basic groups A and B are set as the group for combination in step S22 when n = l, and the basic gnoles C and G are set as step S22 when n = 2. Next, in the repeat step S20 for the 5th to 8th times, the basic groups A and C (5th to 8th) are set as the group for combination obtained in step S22 when n = l, and when n = 2 The combination groups obtained in step S22 are the basic groups B and D (5th), basic groups B and E (6th), basic groups B and F (7th), and basic groups B and G (8th). As described above, by repeating step S20 repeatedly, all emission candidate gnolepe sets are obtained, and the sum of the above differences is obtained for each emission candidate gnolepe set.
その後、ステップ S28では、全ての排出候補グループセットのうち、ステップ S27で 求めた差の合計が最小となる 1つの排出候補グノレープセットを選択し、その排出候補 グノレープセットの 3個の排出候補グノレープをそれぞれ排出グループに決定する。 また次に、基本グループが 3個ある場合 (集合シュートおよび集合ホツバが 3個ある 場合)のステップ S20〜S28の組合せ処理を具体的に説明する。例えば、 A〜Cの 3 個の各基本グループには、 8個ずつの計量ホッパ 4が設けられているものとし、最適 組合せの計量ホッパ 4は 4個選択されるものとし、 1計量サイクノレ中での排出回数を 2 回とする(p = 2)。また、基本グループが 4個以上の場合、組合せ用グループは基本 グループを複数個組合せてなるものとするのが好ましいが、この例のように基本グノレ ープが 3個の場合は、各組合せ用グループは 1個の基本グノレープからなる(k= 1)、 すなわち組合せ用グループは基本グループと等しいものとする。 After that, in step S28, one emission candidate gnole set that minimizes the sum of the differences obtained in step S27 is selected from all emission candidate group sets, and the three emission candidate gnolees of that emission candidate gnole set are selected. Decide each emission group. Next, the combination process of steps S20 to S28 when there are three basic groups (when there are three collective chutes and three collective hotspots) will be specifically described. For example, in each of the three basic groups A to C, eight weighing hoppers 4 are provided, and four weighing hoppers 4 of the optimum combination are selected. Is discharged twice (p = 2). In addition, when there are four or more basic groups, it is preferable that the combination group is a combination of a plurality of basic groups. If there are three groups, each combination group consists of one basic gnole (k = 1), ie the combination group is equal to the basic group.
[0079] まず、繰り返しステップ S20内のステップ S21で、 nを 1に初期設定する。 [0079] First, n is initially set to 1 in step S21 in repetitive step S20.
[0080] ステップ S22では、最初は、決定済みの排出候補グループは無いので、基本ダル ープ k B、 Cのうちの 1つを組合せ用グループとする。 [0080] In step S22, since there is no determined emission candidate group at first, one of the basic loops k B and C is set as a combination group.
[0081] ステップ S23では、ステップ S22で求めた組合せ用グループ内で組合せ演算を行 レ、、最適組合せの計量ホッパ 4を選択するとともに、最適組合せの計量ホッパ 4の計 量値の合計を最適組合せ重量とする。そして、最適組合せの計量ホッパ 4を含む基 本グループ (ここでは組合せ用グノレープに等しレ、)を 1番目の排出候補グループに決 定する。 [0081] In step S23, combination calculation is performed within the combination group obtained in step S22, the optimum combination weighing hopper 4 is selected, and the total of the weighing values of the optimum combination weighing hopper 4 is optimized. Weight. Then, the basic group that includes the weighing hopper 4 of the optimal combination (here, equivalent to the combination gnole) is determined as the first discharge candidate group.
次にステップ S24では、 nが p—1と等しいか否かを判定する。この例では、 n= l、 p 力 ¾で、 p— 1 = 1となり、等しくなるのでステップ S26へ進む。  Next, in step S24, it is determined whether n is equal to p−1. In this example, when n = l and p force ¾, p−1 = 1, which is equal to each other.
[0082] ステップ S26では、例えば、ステップ S22で、基本グループ Aが組合せ用グループ とされ、ステップ S23で、基本グノレープ Aが排出候補グノレープに決定されていたとす ると、排出候補グノレープに属してレ、なレ、基本グノレープ Bと C内の計量ホッパ 4の計量 値に基づいて組合せ演算を行い、最適組合せの計量ホッパ 4を 4個選択するとともに 、その最適組合せの計量ホッパ 4の計量値の合計を最適組合せ重量とする。そして、 最適組合せの計量ホッパ 4を含む基本グループを 2番目の排出候補グループに決 定するとともに、以上で決定された 2個の排出候補グノレープを排出候補グノレープセッ トとする。 [0082] In step S26, for example, if basic group A is set as a combination group in step S22, and basic gnole A is determined to be an emission candidate gnole in step S23, the group belongs to the emission candidate gnole. , Nare, basic gnole B Perform combination calculation based on the weighing value of weighing hopper 4 in B and C, select four weighing hoppers 4 of the optimum combination, and total the weighing values of weighing hopper 4 of the optimum combination Is the optimum combination weight. Then, the basic group including the weighing hopper 4 of the optimum combination is determined as the second emission candidate group, and the two emission candidate gnoles determined above are set as the emission candidate gnorape set.
[0083] ステップ S27では、排出候補グループセットの 2個の排出候補グループの各々につ いて、最適組合せ重量と目標重量との差を求め、さらに各排出候補グループについ て求められた上記の差の合計を算出する。  [0083] In step S27, for each of the two emission candidate groups in the emission candidate group set, a difference between the optimum combination weight and the target weight is obtained, and further, the above difference obtained for each emission candidate group is calculated. Calculate the total.
[0084] さらに、上記のステップ S21〜S27の繰り返しステップ S20の処理を繰り返す。例え ば、次に、ステップ S22で基本グループ Bを組合せ用グループとする場合について 上記処理を繰り返し、さらに基本グノレープ Cを組合せ用グノレープとする場合について 上記処理を繰り返す。これにより、全ての排出候補グノレープセットが求められるととも に、各排出候補グループセットについて上記の差の合計が求められる。 [0085] その後、ステップ S28では、全ての排出候補グループセットのうち、ステップ S27で 求めた差の合計が最小となる 1つの排出候補グノレープセットを選択し、その排出候補 グノレープセットの 2個の排出候補グノレープをそれぞれ排出グループに決定する。 なお、上記説明した図 6に示す処理では、ステップ S23で、組合せ用グループ内で 最適組合せの計量ホッパ 4を含む基本グループを、排出候補グループに決定するよ うにしたが、組合せ用グノレープをそのまま排出候補グノレープに決定するようにしても よい(この場合、組合せ精度が若干低下する可能性はある)。また、ステップ S26で、 p_ l個の排出候補グループに属していない全ての基本グループ内の計量ホッパ 4 の計量値に基づいて組合せ演算を行い、最適組合せの計量ホッパ 4を含む基本グ ループを p番目の排出候補グノレープに決定するようにしたが、 p_ l個の排出候補グ ループに属してレ、なレ、全ての基本グループを p番目の排出候補グループに決定する ようにしてもよい(但し、組合せ演算を行うことに変わりはない)。これらの場合、ステツ プ S30で、順次被計量物を排出する各排出グノレープでは、排出グループ内におけ る最適組合せの計量ホッパ 4を含む基本グループに対応する集合ホッパのみを開閉 して被計量物を排出するようにすればょレ、。 [0084] Further, the processing of the repetition step S20 of steps S21 to S27 is repeated. For example, the above process is repeated for the case where basic group B is used as a combination group in step S22, and the above process is repeated for the case where basic group C is used as a combination group. As a result, all emission candidate gnolepe sets are obtained, and the sum of the above differences is obtained for each emission candidate group set. [0085] After that, in step S28, one emission candidate gnole set that minimizes the sum of the differences obtained in step S27 is selected from all emission candidate group sets, and the two emission candidates in the emission candidate gnole set are selected. Candidate gnorapes are determined for each emission group. In the process shown in FIG. 6 described above, the basic group including the weighing hopper 4 of the optimum combination in the combination group is determined as the discharge candidate group in step S23, but the combination gnole is discharged as it is. It may be determined as a candidate gnolepe (in this case, the combination accuracy may be slightly reduced). In step S26, combination calculation is performed based on the weighing values of the weighing hoppers 4 in all the basic groups not belonging to the p_l emission candidate groups, and the basic group including the weighing hopper 4 of the optimum combination is p. Although it is determined to be the first emission candidate group, it may be determined that it belongs to p_ l emission candidate groups, and all basic groups are determined to be the pth emission candidate group (however, The combination operation is not changed). In these cases, each discharge gnole that sequentially discharges the objects to be weighed in step S30 opens and closes only the collective hopper corresponding to the basic group including the weighing hopper 4 of the optimal combination in the discharge group. If you try to discharge.
[0086] また、繰り返しステップ S20内でステップ S27を行うようにした力 繰り返しステップ S 20内ではステップ S27を行わずに、繰り返しステップ S20 (S21〜S26の繰り返し)が 終了した後、ステップ S28の前に、繰り返しステップ S20で抽出された全ての排出候 補グループセットの各々について、各排出候補グループの最適組合せ重量と目標重 量との差を求め、それらの差の合計を算出するステップを行うようにしてもよい。 [0086] In addition, the force is set to perform step S27 in repeat step S20. After repeat step S20 (repetition of S21 to S26) is completed without repeating step S27 in repeat step S20, before step S28. In addition, for each of all emission candidate group sets extracted in step S20, the step of obtaining the difference between the optimum combination weight of each emission candidate group and the target weight and calculating the sum of those differences is performed. It may be.
また、繰り返しステップ S20が繰り返される 1回のループ内においてステップ S22が 繰り返されるときに、組合せ用グループを構成する基本グループの個数の kを変更す るようにしてもよレ、。例えば初回のステップ S2の場合よりも 2回目のステップ S2の場合 での組合せ用グループを構成する基本グノレープの個数を多くするようにしてもよい。 また、本実施の形態においても、組合せ処理により 2個の排出グループが決定され る場合の組合せ秤の動作のタイミングチャートは図 4で示され、 3個の排出グループ が決定される場合の組合せ秤の動作のタイミングチャートは図 5で示される。図 4 (図 5)における第 1、第 2、(第 3)の排出グループは、それぞれ前述の組合せ処理にお いてステップ S28で選択された排出候補グループセットの 1番目、 2番目、(3番目)の 排出候補グノレープからなる排出グループである。あるいは、例えば、全ての基本ダル ープ (あるいは集合ホッパ)に排出の優先順を示す番号(1、 2、 3、 · · ·)を付与してお き、ステップ S28で決定された各排出グループに属する基本グループのうち最も小さ い番号の基本グノレープの番号同士を比較し、番号が 1番小さい基本グループを含む 排出グノレープを第 1の排出グループとし、番号が 2番目に小さい基本グループを含 む排出グノレープを第 2の排出グループとし、図 5の場合は番号が 3番目に小さい基本 グノレープを含む排出グノレープを第 3の排出グループとするようにしてもよい。 In addition, when step S22 is repeated in a single loop in which repeat step S20 is repeated, the number k of basic groups constituting the combination group may be changed. For example, the number of basic gnoles constituting the combination group in the second step S2 may be made larger than in the first step S2. Also in the present embodiment, the timing chart of the operation of the combination weigher when two discharge groups are determined by the combination processing is shown in FIG. 4, and the combination weigher when three discharge groups are determined. The operation timing chart is shown in FIG. The first, second, and (third) emission groups in Fig. 4 (Fig. 5) are each subjected to the combination process described above. This is an emission group consisting of the first, second and (third) emission candidate gnolees of the emission candidate group set selected in step S28. Or, for example, all basic loops (or collective hoppers) are assigned numbers (1, 2, 3,...) That indicate the priority of discharge, and each discharge group determined in step S28. Compare the numbers of the lowest numbered basic genoles among the basic groups belonging to, and include the basic group with the lowest number as the first emission group, including the basic group with the second lowest number The emission gnole may be the second emission group, and in the case of Figure 5, the emission gnole including the third lowest basic gnole may be the third emission group.
[0087] 本実施の形態においても、実施の形態 1の場合と同様、図 4、図 5に示すように、全 体が 1つの組合せ秤として動作する場合と比べて 2倍、 3倍の速度で排出が可能とな り、高速に動作する包装機に対応できる。また、計量ホッパ 4から排出された被計量 物はそれぞれの集合シュートを通って一旦それぞれの集合ホッパに溜められ、被計 量物が充分に固まった状態で各集合ホッパから排出されるので、各排出グループに 対応する集合ホッパから排出される 1回の排出時間が短くなり、包装機での被計量物 の嚙み込みの発生も防止できる。  [0087] Also in the present embodiment, as in the case of the first embodiment, as shown in Figs. 4 and 5, the speed is twice or three times as compared with the case where the whole operates as one combination weigher. This makes it possible to discharge at a high speed and can be applied to packaging machines that operate at high speed. In addition, the objects to be weighed discharged from the weighing hopper 4 are once stored in the respective collecting hoppers through the respective collecting chutes and discharged from each collecting hopper in a state where the weighing objects are sufficiently hardened. The discharge time for one discharge from the collecting hopper corresponding to the discharge group is shortened, and the occurrence of stagnation of objects to be weighed in the packaging machine can be prevented.
[0088] さらに、本実施の形態における組合せ処理では、実施の形態 1の場合に比べ、 p個 の排出グループから排出される被計量物の合計重量を少なくでき、被計量物の消費 量を低減できるという効果がある。  [0088] Furthermore, in the combination processing in the present embodiment, the total weight of the objects to be weighed discharged from the p discharge groups can be reduced and the consumption of the objects to be weighed can be reduced as compared with the case of Embodiment 1. There is an effect that can be done.
なお、本実施の形態では、集合シュート及び集合ホッパの個数、すなわち基本ダル ープの個数が 3個以上の構成であればよぐ 4個以上の構成とすることがより好ましい 。その理由は、 4個以上の場合には、組合せ処理における組合せ用グループを、基 本グノレープを複数個組合せてなるものとすることができ、基本グループ内の計量ホッ パ数が同じであれば、ステップ S23の組合せ演算時の組合せ数を多くできるからであ る。  In the present embodiment, it is more preferable that the number of collective chutes and collective hoppers, that is, the number of basic loops is 3 or more. The reason for this is that when there are four or more, the combination group in the combination process can be a combination of a plurality of basic gnoles, and if the number of weighing hoppers in the basic group is the same, This is because the number of combinations at the time of the combination calculation in step S23 can be increased.
[0089] また、上記の実施の形態 1及び実施の形態 2において、図 1 (a)、 (b)に示す集合シ ユート及び集合ホッパに代えて、図 7 (a)、 (b)に示すような集合シュート及び集合ホッ パを用レ、てもよい。図 7 (a)は、図 l (a)、(b)に示す集合シュート及び集合ホツバに代 えて用いられる集合シュート及び集合ホッパを側方から視た概略模式図であり、図 7 ( b)は、図 7 (a)に示す集合シュート及び集合ホッパを上方から視た概略模式図である 。図 l (a)、 (b)では、略逆円錐状のシュート 61の中央下部に一体的に形成した 4つ の集合ホッパ 7A〜7Dを設けている力 図 7 (a)、(b)では、略逆円錐状のシュート 61 の中央近傍の下部に離間して各集合シュート 6A〜6Dの排出口を設け、それぞれの 排出口に集合ホッパ 7a〜7dを設け、さらに、集合ホッパ 7a〜7dから排出された被計 量物を受けて包装機のチューブ 51へ投入するための逆円錐台状の下部シュート 63 を設けた構成である。 4つの集合ホッパ 7a〜7dのゲートは周知の供給ホッパ 3等と同 様にして構成できる。なお、下部シュート 63が無くても集合ホッパ 7a〜7dから排出さ れる被計量物を包装機のチューブ 51へ直接投入できるのであれば下部シュート 63 は設けなくてもよい。また、シュート 61の側面の略逆円錐状部分と下部シュート 63と を連続して一体的に形成し、その一体的に形成したシュートの途中に集合ホツバが 設けられた構成としてもよい。なお、前述のように、集合シュート及び集合ホッパの個 数、すなわち基本グループの個数は、 3個以上であれば可能である。 [0089] Further, in the first embodiment and the second embodiment described above, instead of the collective shunt and the collective hopper shown in Fig. 1 (a) and (b), shown in Fig. 7 (a) and (b) Such a collective chute and collective hopper may be used. Fig. 7 (a) is a schematic view of the collective chute and collective hopper used in place of the collective chute and collective hob shown in Figs. L (a) and (b) as seen from the side. FIG. 7 (b) is a schematic diagram of the collective chute and collective hopper shown in FIG. 7 (a) as viewed from above. In Figs. L (a) and (b), the force provided with four collective hoppers 7A to 7D formed integrally at the lower center of the substantially inverted conical chute 61 is shown in Figs. 7 (a) and (b). The discharge holes for the collecting chutes 6A to 6D are provided at a lower portion near the center of the substantially inverted conical chute 61, the collecting hoppers 7a to 7d are provided at the respective discharging openings, and the collecting hoppers 7a to 7d are further provided. The structure is provided with an inverted frustoconical lower chute 63 for receiving the discharged measured material and feeding it into the tube 51 of the packaging machine. The gates of the four collecting hoppers 7a to 7d can be configured in the same manner as the known supply hopper 3 and the like. Even if the lower chute 63 is not provided, the lower chute 63 may not be provided if the objects to be weighed discharged from the collecting hoppers 7a to 7d can be directly put into the tube 51 of the packaging machine. Alternatively, the substantially inverted conical portion on the side surface of the chute 61 and the lower chute 63 may be formed continuously and integrally, and a collecting hot bar may be provided in the middle of the integrally formed chute. As described above, the number of collective chutes and collective hoppers, that is, the number of basic groups can be three or more.
[0090] また、各集合シュート(6A〜6D)を分離した構成でもよい。すなわち、各基本ダル ープに対応する各集合シュートを完全に分離して設け、それらの各集合シュートの下 部に集合ホッパ(7a〜7d)を設け、全ての集合ホッパから排出される被計量物を受け て包装機のチューブ(51)へ排出させる下部シュート(63)を設けた構成でもよい。 また、上記の実施の形態 1及び実施の形態 2では、各基本グループに含まれる組 合せに参加する計量ホッパ 4の個数を等しくした力 各基本グループに含まれる計量 ホッパ 4の個数は必ずしも同一である必要はない。例えば、計量ホッパ 4を全部で 11 個設け、計量ホッパ 4を 2個ずつ有する 5つの基本グループと、計量ホッパ 4を 1個有 する 1つの基本グノレープとになるように構成してもよい。  [0090] Alternatively, the collective chutes (6A to 6D) may be separated. In other words, each collective chute corresponding to each basic drape is completely separated, and a collective hopper (7a-7d) is provided below each collective chute to be weighed discharged from all collective hoppers. A configuration may be provided in which a lower chute (63) for receiving an object and discharging it to the tube (51) of the packaging machine is provided. Further, in the first embodiment and the second embodiment described above, the force obtained by equalizing the number of the weighing hoppers 4 participating in the combinations included in each basic group The number of the weighing hoppers 4 included in each basic group is not necessarily the same. There is no need. For example, a total of 11 weighing hoppers 4 may be provided, and 5 basic groups each having 2 weighing hoppers 4 and 1 basic gnolepe having 1 weighing hopper 4 may be configured.
[0091] また、上記の実施の形態 1及び実施の形態 2では、組合せに参加するホッパとして 計量ホッパ 4のみの場合を説明したが、さらに図 8に示すように各計量ホッパ 4の斜め 下方にメモリホッパ 5を設けて組合せに参加させてもよい。この場合、計量ホッパ 4は 集合シュート 6X (6A〜6D)とメモリホッパ 5へ選択的に被計量物を排出可能な構成 である。メモリホッパ 5は空になると計量ホッパ 4から被計量物が投入される。制御部 2 1による組合せ処理により、各排出グノレープおよび各排出グループ内の複数の計量 ホッパ 4およびメモリホッパ 5の中から最適組合せ重量となるホッパの組合せが求めら れ、その組合せに該当するホッパから被計量物が集合シュート 6X上へ排出される。 組合せ演算において用いられるメモリホッパ 5内の被計量物の重量は、その上方の 計量ホッパ 4において計量されたときの重量が用いられる。 [0091] In the first embodiment and the second embodiment described above, the case where only the weighing hopper 4 is used as the hopper participating in the combination has been described. However, as shown in FIG. A memory hopper 5 may be provided to participate in the combination. In this case, the weighing hopper 4 is configured to selectively discharge the objects to be weighed to the collecting chute 6X (6A to 6D) and the memory hopper 5. When the memory hopper 5 is empty, the object to be weighed is fed from the weighing hopper 4. Multiple measures within each emission group and each emission group by combination processing by the control unit 21 A combination of hoppers having an optimum combination weight is obtained from the hopper 4 and the memory hopper 5, and the objects to be weighed are discharged from the hopper corresponding to the combination onto the collecting chute 6X. The weight of the object to be weighed in the memory hopper 5 used in the combination calculation is the weight when weighed in the weighing hopper 4 above it.
[0092] 例えば、図 1 (a)、 (b)の構成において、各基本グループ A〜Dに 6個の計量ホッパ 4を設けた場合とほぼ同等の性能を持たせる場合には、各基本グループ A〜Dに 3 個の計量ホッパ 4と 3個のメモリホッパ 5を備えればよぐ高価な重量センサ 41が半分 の個数で済む。 [0092] For example, in the configurations shown in Figs. 1 (a) and (b), when each basic group A to D has almost the same performance as when six weighing hoppers 4 are provided, each basic group If A to D are equipped with three weighing hoppers 4 and three memory hoppers 5, it is sufficient to halve the number of expensive weight sensors 41.
[0093] また、図 9に示すように、各メモリホッパ 5を 2つの収容室 5a, 5bを有するものとして もよレ、。この場合、計量ホッパ 4はメモリホッパ 5の収容室 5aと収容室 5bへ選択的に 被計量物を排出可能な構成であり、計量ホッパ 4から集合シュート 6X上へは排出さ れない。メモリホッパ 5の 2つの収容室 5a、 5bはそれぞれ別々に被計量物を排出可 能な構成である。組合せ演算は、例えば、各メモリホッパ 5の収容室 5a、 5b内の被計 量物の重量を用いて行われ、各収容室 5a、 5bが組合せに参加し、計量ホッパ 4は組 合せに参加しない。各収容室 5a、 5b内の被計量物の重量は、その上方の計量ホッ パ 4において計量されたときの重量が用いられる。なお、各計量ホッパ 4と、それと対 応するメモリホッパ 5のいずれかの収容室 5a, 5bとが同時に選択される組合せのみ 有効として、計量ホッパ 4を組合せに参加させることもできる。例えば、対応する計量 ホッパ 4とメモリホッパ 5の収容室 5aとが同時に選択された場合、計量ホッパ 4の被計 量物は収容室 5aを通過して集合シュート 6X上へ排出される。  Further, as shown in FIG. 9, each memory hopper 5 may have two storage chambers 5a and 5b. In this case, the weighing hopper 4 is configured to selectively discharge the object to be measured to the storage chamber 5a and the storage chamber 5b of the memory hopper 5, and is not discharged from the weighing hopper 4 onto the collecting chute 6X. The two storage chambers 5a and 5b of the memory hopper 5 are configured such that the objects to be weighed can be discharged separately. The combination calculation is performed using, for example, the weight of the weighing objects in the storage chambers 5a and 5b of each memory hopper 5, and each of the storage chambers 5a and 5b participates in the combination, and the weighing hopper 4 participates in the combination. do not do. As the weight of the objects to be weighed in the respective storage chambers 5a and 5b, the weight when weighed in the weighing hopper 4 above is used. Note that only the combination in which each weighing hopper 4 and one of the storage chambers 5a and 5b of the corresponding memory hopper 5 are selected at the same time is valid, and the weighing hopper 4 can be included in the combination. For example, when the corresponding weighing hopper 4 and the storage chamber 5a of the memory hopper 5 are selected at the same time, the measured item in the weighing hopper 4 passes through the storage chamber 5a and is discharged onto the collecting chute 6X.
[0094] また、図 10に示すように、各計量ホッパ 4を 2つの計量室 4a, 4bを有するものとして もよレ、。この場合、供給ホッパ 3は計量ホッパ 4の計量室 4aと計量室 4bへ選択的に被 計量物を排出可能な構成であり、計量ホッパ 4の 2つの計量室 4a、 4bはそれぞれ別 々に被計量物を排出可能な構成である。組合せ演算は、各計量ホッパ 4の計量室 4a 、 4b内の被計量物の重量を用いて行われ、各計量室 4a、 4bが組合せに参加する。 2つの計量室 4a, 4bを有する各計量ホッパ 4では、一方の計量室例えば計量室 4a のみに被計量物が供給されているときに、計量室 4a内の被計量物の重量は重量セ ンサ 41により計量される。さらに他方の計量室 4bに被計量物が供給されると、 2つの 計量室 4a, 4b内の被計量物の合計重量が重量センサ 41により計量される。制御部 21 (図 1参照)では、この 2つの計量室 4a, 4b内の被計量物の合計重量から計量室 4 a内の被計量物の重量を減算することで、計量室 4b内の被計量物の重量を算出し、 組合せ演算を行う。 Also, as shown in FIG. 10, each weighing hopper 4 may have two weighing chambers 4a and 4b. In this case, the supply hopper 3 can selectively discharge the objects to be weighed into the weighing chamber 4a and the weighing chamber 4b of the weighing hopper 4, and the two weighing chambers 4a and 4b of the weighing hopper 4 are separately covered. It is a configuration that can discharge the weighing object. The combination calculation is performed using the weight of the objects to be weighed in the weighing chambers 4a and 4b of each weighing hopper 4, and each weighing chamber 4a and 4b participates in the combination. In each weighing hopper 4 having two weighing chambers 4a and 4b, when the weighing object is supplied only to one weighing chamber, for example, the weighing chamber 4a, the weight of the weighing object in the weighing chamber 4a is the weight sensor. Weighed by 41. When an object to be weighed is supplied to the other weighing chamber 4b, two The total weight of the objects to be weighed in the measuring chambers 4a and 4b is measured by the weight sensor 41. The control unit 21 (see Fig. 1) subtracts the weight of the objects to be weighed in the weighing chamber 4a from the total weight of the objects to be weighed in the two weighing chambers 4a and 4b. Calculate the weight of the sample and perform combination calculation.
[0095] また、図 11に示すように、各計量ホッパ 4を 2つの計量室 4a, 4bを有するものとし、 さらに各計量ホッパ 4の下方に、計量ホッパ 4の計量室 4a, 4bと対応する 2つの収容 室 5a, 5bを有するメモリホッパ 5を設けてもよレ、。この場合、供給ホッパ 3は計量ホッ パ 4の計量室 4aと計量室 4bへ選択的に被計量物を排出可能な構成である。計量ホ ッパ 4の計量室 4aの被計量物はメモリホッパ 5の収容室 5aへ送出され、計量ホッパ 4 の計量室 4bの被計量物はメモリホッパ 5の収容室 5bへ送出される。組合せ演算は、 例えば、各メモリホッパ 5の収容室 5a, 5b内の被計量物の重量を用いて行われ、各 収容室 5a, 5bが組合せに参加し、計量ホッパ 4は組合せに参加しなレ、。各収容室 5a 、 5b内の被計量物の重量は、その上方の計量ホッパ 4の各計量室 4a, 4bにおいて 計量及び算出されたときの重量が用いられる。なお、各計量室 4a, 4bと、それと対応 する収容室 5a, 5bとが同時に選択される組合せのみ有効として、計量ホッパ 4の各 計量室 4a, 4bを組合せに参加させることもできる。例えば、対応する計量室 4aと収 容室 5aとが同時に選択された場合、計量室 4aの被計量物は収容室 5aを通過して集 合シュート 6X上へ排出される。  Further, as shown in FIG. 11, each weighing hopper 4 has two weighing chambers 4a and 4b, and further corresponds to the weighing chambers 4a and 4b of the weighing hopper 4 below each weighing hopper 4. A memory hopper 5 having two storage chambers 5a and 5b may be provided. In this case, the supply hopper 3 is configured to selectively discharge an object to be weighed into the weighing chamber 4a and the weighing chamber 4b of the weighing hopper 4. The objects to be weighed in the weighing chamber 4a of the weighing hopper 4 are sent to the storage chamber 5a of the memory hopper 5, and the objects to be weighed in the weighing chamber 4b of the weighing hopper 4 are sent to the storage chamber 5b of the memory hopper 5. The combination calculation is performed using, for example, the weight of the objects to be weighed in the storage chambers 5a and 5b of each memory hopper 5, and each of the storage chambers 5a and 5b participates in the combination, and the weighing hopper 4 does not participate in the combination. Les. As the weight of the objects to be weighed in each of the storage chambers 5a and 5b, the weight measured and calculated in each of the weighing chambers 4a and 4b of the weighing hopper 4 thereabove is used. It is also possible to make each weighing chamber 4a, 4b of the weighing hopper 4 participate in the combination, with only the combination in which the weighing chambers 4a, 4b and the corresponding storage chambers 5a, 5b are simultaneously selected valid. For example, when the corresponding weighing chamber 4a and the storage chamber 5a are selected at the same time, the objects to be weighed in the weighing chamber 4a pass through the storage chamber 5a and are discharged onto the collecting chute 6X.
[0096] なお、上記の実施の形態 1及び実施の形態 2の組合せ秤では、分散フィーダ 1、リ ニァフィーダ 2および供給ホッパ 3を備えてレ、るが、これらの構成にっレ、ては限定され るものではなぐ被計量物の種類 (粉粒体、塊状物品)等に応じて他の構成でもよぐ 計量ホッパ 4へ被計量物を供給する手段が備えられていればよい。また、制御部 21 は、必ずしも単独の制御装置で構成される必要はなぐ複数の制御装置が分散配置 されてレ、て、それらが協働して組合せ秤の動作を制御するよう構成されてレ、てもよレ、 上記説明から、当業者にとっては、本発明の多くの改良や他の実施形態が明らか である。従って、上記説明は、例示としてのみ解釈されるべきであり、本発明を実行 する最良の態様を当業者に教示する目的で提供されたものである。本発明の精神を 逸脱することなぐその構造及び/又は機能の詳細を実質的に変更できる。 [0096] Note that the combination weighers of the first embodiment and the second embodiment described above are provided with the dispersion feeder 1, the linear feeder 2 and the supply hopper 3. However, these configurations are limited. Depending on the type of the object to be weighed (powder, lump, etc.), other configurations may be used as long as a means for supplying the object to be weighed to the weighing hopper 4 is provided. In addition, the control unit 21 includes a plurality of control devices that are not necessarily configured by a single control device, and the control unit 21 is configured to control the operation of the combination weigher in cooperation with each other. From the above description, many modifications and other embodiments of the present invention are apparent to persons skilled in the art. Accordingly, the foregoing description should be construed as illustrative only and is provided for the purpose of teaching those skilled in the art the best mode of carrying out the invention. The spirit of the present invention Details of its structure and / or function without departing can be substantially changed.
産業上の利用可能性 Industrial applicability
本発明の組合せ秤は、高速運転の包装機に対応可能な組合せ秤として有用であ る。  The combination weigher of the present invention is useful as a combination weigher that can be used for a high-speed packaging machine.

Claims

請求の範囲 The scope of the claims
[1] 円状に列設され被計量物が投入される複数の組合せ用ホッパからなる組合せ用ホ ッパ列が複数に区分された円弧状のホッパ列からなる複数の基本グノレープと、 それぞれ、各々の前記基本グループと対応して前記基本グループの下方に配設さ れ、対応する前記基本グノレープの前記組合せ用ホッパから排出される被計量物を集 合させて下部に設けられた排出口から排出させるための複数の集合シュートと、 それぞれ、各々の前記基本グループ及び前記集合シュートと対応して前記集合シ ユートの排出口に設けられ、前記集合シュートの排出口から排出される被計量物を一 且貯留した後、前記被計量物を排出するための複数の集合ホッパと、  [1] A plurality of basic gnorapes composed of arc-shaped hopper rows, each of which is composed of a plurality of combination hopper rows arranged in a circle and into which the objects to be weighed are placed, Corresponding to each of the basic groups, it is arranged below the basic group, and collects the objects to be discharged from the combination hoppers of the corresponding basic gnorapes, from a discharge port provided at the bottom. A plurality of collective chutes for discharge, and objects to be weighed that are provided at the collective chute discharge ports corresponding to the basic groups and the collective chutes, respectively, and discharged from the collective chute discharge ports. A plurality of collecting hoppers for discharging the objects to be weighed after being stored;
制御手段とを備え、  Control means,
前記制御手段は、  The control means includes
それぞれ 1個以上の前記基本グループからなる p個(pは基本グループの総グノレ一 プ数未満の複数)の排出グノレープを決定するとともに、それぞれの前記排出グルー プ内の前記組合せ用ホッパに投入されている被計量物の重量に基づいて組合せ演 算を行うことにより、投入されている被計量物の合計重量が目標重量に対して許容範 囲内であり、かつ前記目標重量との差が最も小さい組合せの前記組合せ用ホッパを 求める組合せ処理と、  Each of the p-groups (p is a plurality less than the total number of group groups) consisting of one or more of the above-mentioned basic groups is determined and fed into the combination hopper in each of the above-mentioned discharge groups. The total weight of the input objects to be weighed is within an allowable range with respect to the target weight and the difference from the target weight is the smallest by performing the combination calculation based on the weight of the object to be weighed. Combination processing for obtaining the combination hopper of the combination;
それぞれの前記排出グノレープにおいて求められている全ての前記組合せの組合 せ用ホッパから同時に被計量物を排出させる内部排出処理と、  An internal discharge process for simultaneously discharging the objects to be weighed from the combination hoppers of all the combinations required in each of the discharge gnoles;
それぞれの前記排出グノレープを順次選択し、この選択した順に前記排出グループ 内の前記組合せの組合せ用ホッパを含む前記基本グノレープに対応する前記集合ホ ッパから被計量物を排出させる外部排出処理とを行う組合せ秤。  External discharge processing for selecting each discharge gnole sequentially, and discharging the objects to be weighed from the collective hopper corresponding to the basic gnole including the combination hoppers in the discharge group in the selected order. Combination weigher to perform.
[2] 前記組合せ処理は、 [2] The combination process is:
前記排出グノレープに属していない前記基本グループを k個(kは 1以上の整数)組 み合わせてなる全ての組合せ用グループを求める第 1の処理と、全ての前記組合せ 用グループの各々に対し、前記組合せ用グループ内の前記組合せ用ホッパに投入 されてレ、る被計量物の重量に基づレ、て組合せ演算を行うことにより、投入されてレ、る 被計量物の合計重量が目標重量に対して許容範囲内であり、かつ前記目標重量と の差が最も小さい第 1の組合せの前記組合せ用ホッパを求めるとともに、前記第 1の 組合せの組合せ用ホッパの被計量物の合計重量を前記組合せ用グループの最適 組合せ重量とする第 2の処理と、全ての前記組合せ用グループのうち前記目標重量 との差が最も小さい最適組合せ重量を有する前記組合せ用グループを求め、この求 められた組合せ用グループ、またはこの組合せ用グループ内で前記第 1の組合せの 前記組合せ用ホッパを含む前記基本グループを、前記排出グループに決定する第 3 の処理とからなる一連の処理を、(p_ l)回行うことにより、(p_ l)個の前記排出ダル ープを決定する処理と、 For each of all the combination groups, a first process for obtaining all combination groups formed by combining k basic groups that do not belong to the discharge gnolek (k is an integer of 1 or more) The total weight of the objects to be weighed is added to the target weight by performing a combination operation based on the weight of the objects to be weighed. With respect to the target weight and A second process in which the combination hopper of the first combination with the smallest difference is obtained, and the total weight of the objects to be weighed in the combination hopper of the first combination is set to the optimum combination weight of the combination group; The combination group having the optimum combination weight having the smallest difference from the target weight among all the combination groups is obtained, and the combination group thus obtained or the first group within the combination group is obtained. A series of processes consisting of a third process for determining the basic group including the combination hoppers of the combination as the discharge group is performed (p_l) times, so that (p_l) of the discharge dallo Processing to determine
前記(p_ 1)個の排出グループに属してレ、なレ、全ての前記基本グループの前記組 合せ用ホッパに投入されている被計量物の重量に基づいて組合せ演算を行うことに より、投入されている被計量物の合計重量が目標重量に対して許容範囲内であり、 かつ前記目標重量との差が最も小さい第 2の組合せの前記組合せ用ホッパを求める とともに、前記(p— 1)個の排出グノレープに属してレ、なレ、全ての前記基本グループ、 または前記第 2の組合せの組合せ用ホッパを含む前記基本グノレープを、 p個目の前 記排出グループに決定する処理とを有する請求項 1記載の組合せ秤。  By performing a combination operation based on the weight of objects to be weighed that belong to the (p_1) discharge groups, and to the combination hoppers of all the basic groups, Determining the second combination hopper of the second combination in which the total weight of the objects to be weighed is within an allowable range with respect to the target weight and the difference from the target weight is the smallest, and (p-1) And determining the basic gnole including the hopper for combination of the second, combination, or the second combination as a p-th discharge group. The combination weigher according to claim 1.
前記組合せ処理は、  The combination process is
それぞれ 1個以上の前記基本グループからなる(p— 1)個の排出候補グループを 決定するとともにそれぞれの前記排出候補グノレープの最適組合せ重量を求める第 1 の組合せ処理と、 1個以上の前記基本グノレープからなる p個目の排出候補グノレープ を決定するとともにそれぞれの前記 P個目の排出候補グループの最適組合せ重量を 求め、前記 p個目の排出候補グノレープと前記 (p—l)個の排出候補グループとを合 わせて 1つの排出候補グノレープセットとする第 2の組合せ処理と、前記排出候補ダル ープセットの p個の前記排出候補グループのそれぞれの前記最適組合せ重量と前記 目標重量との差の合計を算出する演算処理とからなる、ループ処理を複数回繰り返 すことにより、それぞれに含まれる少なくとも 1個の排出候補グループが異なる全ての 排出候補グノレープセットを求めるとともに各々の前記排出候補グノレープセットにおけ る前記差の合計を求める処理と、  A first combination process for determining (p-1) emission candidate groups each including one or more of the basic groups and determining an optimum combination weight of each of the emission candidate gnorapes, and one or more of the basic gnorapes. And determining the optimal combination weight of each of the P th emission candidate groups and determining the p th emission candidate gnole and the (p−l) emission candidate groups. And the sum of the difference between the optimal combination weight and the target weight of each of the p emission candidate groups of the emission candidate dull set. By repeating the loop process consisting of the calculation process to be calculated multiple times, at least one emission candidate group included in each is different. A process for obtaining all emission candidate gnolepe sets and calculating the sum of the differences in each of the emission candidate gnolepe sets;
全ての前記排出候補グループセットのうち前記差の合計が最小である前記排出候 補グノレープセットの P個の前記排出候補グループのそれぞれを前記排出グループに 決定する処理とを有し、 The emission score having the smallest sum of the differences among all the emission candidate group sets A process of determining each of the P emission candidate groups of the supplemental gnolepe set as the emission group,
複数回繰り返されるうちの同一回数目の前記ループ処理における前記第 1の組合 せ処理は、第 2の処理によって前記排出候補グループに属していない前記基本ダル ープを 1 0 (kは 1以上の整数)組み合わせてなる任意の 1つの組合せ用グループを 求める第 1の処理と、前記組合せ用グループに対し、前記組合せ用グループ内の前 記組合せ用ホッパに投入されている被計量物の重量に基づいて組合せ演算を行うこ とにより、投入されている被計量物の合計重量が目標重量に対して許容範囲内であ り、かつ前記目標重量との差が最も小さい第 1の組合せの前記組合せ用ホッパを選 択するとともに、前記組合せ用グループ、または前記組合せ用グループ内で前記第 1の組合せの前記組合せ用ホッパを含む前記基本グループを、 1個の前記排出候補 グノレープに決定し、前記第 1の組合せの組合せ用ホッパの被計量物の合計重量を 前記排出候補グノレープの最適組合せ重量とする前記第 2の処理とからなる一連の処 理を、 (p— 1)回行うことにより、前記 (p— 1)個の排出候補グループを決定する処理 であり、  The first combination process in the loop process of the same number of times that is repeated a plurality of times is performed by adding the basic loop that does not belong to the emission candidate group by the second process to 10 (k is 1 or more). (Integer) Based on the first process for obtaining any one combination group in combination and the weight of the objects to be weighed in the combination hopper in the combination group for the combination group For the combination of the first combination, the total weight of the objects to be weighed is within the allowable range with respect to the target weight, and the difference from the target weight is the smallest. The hopper is selected, and the basic group including the combination hopper of the first combination in the combination group or the combination group A series of processes consisting of the second process in which the total weight of the objects to be weighed in the combination hopper of the first combination is set as the optimum combination weight of the discharge candidate gnole is determined as (p-1) ) Times to determine the (p-1) emission candidate groups,
前記同一回数目の前記ループ処理における前記第 2の組合せ処理は、前記 (p— 1)個の排出候補グループに属していない全ての前記基本グノレープの前記組合せ用 ホッパに投入されている被計量物の重量に基づいて組合せ演算を行うことにより、投 入されている被計量物の合計重量が目標重量に対して許容範囲内であり、かつ前 記目標重量との差が最も小さい第 2の組合せの前記組合せ用ホッパを求めるとともに 、前記 (p— 1)個の排出候補グループに属していない全ての前記基本グノレープ、ま たは前記第 2の組合せの組合せ用ホッパを含む前記基本グノレープを、 p個目の前記 排出候補グループに決定し、前記第 2の組合せの組合せ用ホッパの被計量物の合 計重量を前記 P個目の排出候補グループの最適組合せ重量とし、前記 P個目の排出 候補グノレープと前記 (P— 1)個の排出候補グループとを合わせて 1つの前記排出候 補グノレープセットとする処理である請求項 1記載の組合せ秤。  The second combination process in the same number of times of the loop process includes the objects to be weighed that are put in the combination hoppers of all the basic gnoles that do not belong to the (p-1) discharge candidate groups. By performing a combination calculation based on the weight of the second combination, the total weight of the input objects to be weighed is within the allowable range with respect to the target weight, and the second combination having the smallest difference from the target weight is the smallest. And the basic gnole including the combination hoppers of all the basic gnoles that do not belong to the (p-1) discharge candidate groups, or the second combination hopper, The second discharge candidate group is determined, and the total weight of the objects to be weighed in the second combination hopper is set as the optimum combination weight of the Pth discharge candidate group, and the Pth discharge candidate 2. The combination weigher according to claim 1, which is a process of combining a supplemental gnolepe and the (P-1) discharge candidate groups into one discharge candidate complementary gnole set.
前記第 1、第 2及び第 3の処理からなる一連の処理を、(p_ l)回行うことにより、(p _ 1)個の前記排出グループを決定する処理にぉレ、て、前記 (p_ 1)回のうちの少な くとも 1回、前記組合せ用グループを構成する前記基本グループの個数の前記 kを 変更する請求項 2記載の組合せ秤。 A series of processes consisting of the first, second, and third processes is performed (p_l) times, so that (p_1) number of the emission groups is determined. 1) Less of times 3. The combination weigher according to claim 2, wherein the number k of the basic groups constituting the combination group is changed at least once.
[5] 前記第 1及び第 2の処理とからなる一連の処理を、(p— 1)回行うことにより、(p— 1) 個の前記排出候補グループを決定する第 1の組合せ処理において、前記 (p_ l)回 のうちの少なくとも 1回、前記組合せ用グループを構成する前記基本グループの個数 の前記 kを変更する請求項 3記載の組合せ秤。 [5] In the first combination process of determining (p-1) number of emission candidate groups by performing a series of processes consisting of the first and second processes (p-1) times, 4. The combination weigher according to claim 3, wherein the number k of the basic groups constituting the combination group is changed at least once among the (p_l) times.
[6] 前記組合せ処理で決定する前記排出グループの個数は 2個(p = 2)または 3個(p[6] The number of emission groups determined by the combination process is 2 (p = 2) or 3 (p
= 3)である請求項 1〜5のいずれかに記載の組合せ秤。 = 3) The combination weigher according to any one of claims 1 to 5.
[7] それぞれの前記基本グノレープに含まれる前記組合せ用ホッパの個数が等しい請 求項 1〜6のいずれかに記載の組合せ秤。 [7] The combination weigher according to any one of claims 1 to 6, wherein the number of the combination hoppers included in each of the basic gnoles is equal.
[8] 全ての前記基本グループのうち少なくとも 1個の前記基本グノレープに含まれる前記 組合せ用ホッパの個数が他の前記基本グノレープに含まれる前記組合せ用ホッパの 個数と異なる請求項 1〜6のいずれかに記載の組合せ秤。 [8] The number of the combination hoppers included in at least one basic gnole of all the basic groups is different from the number of the combination hoppers included in another basic gnole. A combination scale according to any one of the above.
[9] 前記組合せ用ホッパは、投入される被計量物の重量を計量する計量ホッパである 請求項 1〜3のいずれかに記載の組合せ秤。 [9] The combination weigher according to any one of claims 1 to 3, wherein the combination hopper is a weighing hopper for weighing a weight of an object to be weighed.
[10] 前記組合せ用ホッパ列が上下 2列に配設され、上方の前記組合せ用ホッパ列の組 合せ用ホッパは、投入される被計量物の重量を計量する計量ホッパであり、下方の 前記組合せ用ホッパ列の組合せ用ホッパは、それぞれ前記計量ホッパと対応して設 けられ前記計量ホッパで計量された被計量物が投入されるメモリホッパであり、前記 計量ホッパは対応する前記メモリホッパと前記集合シュートへ選択的に被計量物を排 出可能な構成である請求項 1〜3のいずれかに記載の組合せ秤。 [10] The combination hopper rows are arranged in two upper and lower rows, and the combination hopper in the upper combination hopper row is a weighing hopper for weighing the object to be weighed. The combination hoppers in the combination hopper row are memory hoppers that are provided in correspondence with the weighing hoppers and into which the objects to be weighed by the weighing hoppers are put, respectively. The weighing hoppers and the corresponding memory hoppers 4. The combination weigher according to claim 1, wherein the combination weigher has a configuration capable of selectively discharging the objects to be weighed to the collecting chute.
[11] それぞれの前記組合せ用ホツバと対応して前記組合せ用ホッパの上方に、投入さ れる被計量物の重量を計量する複数の計量ホッパが配設され、 [11] A plurality of weighing hoppers for measuring the weight of the objects to be weighed are disposed above the combination hoppers corresponding to the respective combination hoppers,
前記組合せ用ホッパは、 2つの収容室を備え、それぞれの前記収容室に前記計量 ホッパで計量された被計量物が投入され、それぞれの前記収容室ごとに被計量物を 排出可能なメモリホッパであり、  The combination hopper is a memory hopper provided with two storage chambers, into which the objects to be weighed by the weighing hopper are put in each of the storage chambers, and the objects to be weighed can be discharged for each of the storage chambers. Yes,
前記計量ホッパは対応する前記メモリホッパの 2つの前記収容室へ選択的に被計 量物を排出可能な構成であり、 前記制御手段は、前記組合せ処理における組合せ演算を、それぞれの前記メモリ ホッパの各収容室に投入されている被計量物の重量に基づいて行うことにより、前記 メモリホッパの収容室の組合せを決定し、前記内部排出処理において前記決定した 組合せの前記収容室から被計量物を排出させ、前記外部排出処理において前記決 定した組合せの前記収容室を有する前記メモリホッパを含む前記基本グループに対 応する前記集合ホッパから被計量物を排出させる請求項 1〜3のいずれかに記載の 組合せ秤。 The weighing hopper is configured to be able to selectively discharge the measured material to the two storage chambers of the corresponding memory hopper, The control means determines a combination of the storage chambers of the memory hopper by performing a combination calculation in the combination processing based on the weight of the objects to be weighed in the storage chambers of the respective memory hoppers. Corresponding to the basic group including the memory hopper having the storage chambers of the determined combination discharged from the storage chambers of the determined combination in the internal discharge processing and having the storage chambers of the determined combination in the external discharge processing. The combination weigher according to any one of claims 1 to 3, wherein the objects to be weighed are discharged from the collecting hopper.
[12] 前記組合せ用ホッパは、 2つの計量室を備え、それぞれの前記計量室に投入され る被計量物の重量を計量し、それぞれの前記計量室ごとに被計量物を排出可能な 計量ホッパであり、  [12] The combination hopper includes two weighing chambers, and weighs the objects to be weighed in the respective weighing chambers, and can discharge the objects to be weighed in each of the weighing chambers. And
前記制御手段は、前記組合せ処理における組合せ演算を、それぞれの前記計量 ホッパの各計量室に投入されている被計量物の重量に基づいて行うことにより、前記 計量ホッパの計量室の組合せを決定し、前記内部排出処理にぉレ、て前記決定した 組合せの前記計量室から被計量物を排出させ、前記外部排出処理において前記決 定した組合せの前記計量室を有する前記計量ホッパを含む前記基本グループに対 応する前記集合ホッパから被計量物を排出させる請求項 1〜3のいずれかに記載の 組合せ秤。  The control means determines a combination of the weighing chambers of the weighing hoppers by performing a combination operation in the combination processing based on the weight of the objects to be weighed put in the weighing chambers of the respective weighing hoppers. The basic group including the weighing hopper that discharges the objects to be weighed from the weighing chamber of the determined combination in response to the internal discharging process and has the weighing chamber of the determined combination in the external discharging process. The combination weigher according to any one of claims 1 to 3, wherein the objects to be weighed are discharged from the collecting hopper corresponding to the above.
[13] それぞれの前記組合せ用ホッパと対応して前記組合せ用ホッパの上方に、 2つの 計量室を備え、それぞれの前記計量室に投入される被計量物の重量を計量し、それ ぞれの前記計量室ごとに被計量物を排出可能な複数の計量ホッパが配設され、 前記組合せ用ホッパは、対応する前記計量ホッパの各計量室と対応して 2つの収 容室を備え、それぞれの前記収容室に前記計量ホツバの対応する計量室からの被 計量物が投入され、それぞれの前記収容室ごとに被計量物を排出可能なメモリホッ パであり、  [13] Two weighing chambers are provided above the combination hopper corresponding to each of the combination hoppers, and the weights of the objects to be put into the respective weighing chambers are weighed. Each weighing chamber is provided with a plurality of weighing hoppers capable of discharging objects to be weighed, and the combination hopper includes two storage chambers corresponding to each weighing chamber of the corresponding weighing hopper. A memory hopper in which an object to be weighed from a corresponding weighing chamber of the weighing hot bar is put into the accommodating chamber, and the object to be weighed can be discharged for each of the accommodating chambers;
前記制御手段は、前記組合せ処理における組合せ演算を、それぞれの前記メモリ ホッパの各収容室に投入されている被計量物の重量に基づいて行うことにより、前記 メモリホツバの収容室の組合せを決定し、前記内部排出処理において前記決定した 組合せの前記収容室から被計量物を排出させ、前記外部排出処理において前記決 定した組合せの前記収容室を有する前記メモリホッパを含む前記基本グループに対 応する前記集合ホッパから被計量物を排出させる請求項 1〜3のいずれかに記載の 組合せ秤。 The control means determines a combination of the storage chambers of the memory hopper by performing a combination calculation in the combination processing based on the weight of the objects to be weighed put in the storage chambers of the respective memory hoppers, The objects to be weighed are discharged from the storage chamber of the determined combination in the internal discharge process, and the determination is made in the external discharge process. The combination weigher according to any one of claims 1 to 3, wherein the objects to be weighed are discharged from the collective hopper corresponding to the basic group including the memory hopper having the storage chamber of a predetermined combination.
PCT/JP2005/020411 2004-11-18 2005-11-08 Combination balance WO2006054455A1 (en)

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US11/719,725 US8035041B2 (en) 2004-11-18 2005-11-08 Combinational machine that performs a first combinational calculation among each of a plurality of base groups, discharges them into respective discharge chutes, and then performs a second combinational calculation among the discharged groups
EP05806338.9A EP1821084B1 (en) 2004-11-18 2005-11-08 Combination weigher
AU2005307646A AU2005307646B2 (en) 2004-11-18 2005-11-08 Combination weigher
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